<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:545e6526-0108-4d5c-b85a-226448324fa7,g:eeb2fc85-7181-4039-90ea-4a9320a2b902-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.atkins.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="atk-20220528.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.atkins.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_8671f914-60b8-4dbb-a3db-2d4faaa38392" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_0486665d-9e29-4da8-b622-3bdb50541a35" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8671f914-60b8-4dbb-a3db-2d4faaa38392" xlink:to="loc_us-gaap_AssetsCurrent_0486665d-9e29-4da8-b622-3bdb50541a35" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncurrentAssets_98488bfd-ff1a-43a7-be8b-42cfe7380117" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoncurrentAssets"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8671f914-60b8-4dbb-a3db-2d4faaa38392" xlink:to="loc_us-gaap_NoncurrentAssets_98488bfd-ff1a-43a7-be8b-42cfe7380117" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_bdfa6037-80a7-4cdf-9eea-77dbb9978b48" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8671f914-60b8-4dbb-a3db-2d4faaa38392" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_bdfa6037-80a7-4cdf-9eea-77dbb9978b48" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_5f472833-0ac1-4267-9bc1-a48b44e1d257" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8671f914-60b8-4dbb-a3db-2d4faaa38392" xlink:to="loc_us-gaap_Goodwill_5f472833-0ac1-4267-9bc1-a48b44e1d257" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_fd218eca-acde-4c60-8cba-311cf1f6631b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_8671f914-60b8-4dbb-a3db-2d4faaa38392" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_fd218eca-acde-4c60-8cba-311cf1f6631b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_9632646f-799b-438b-bd4d-5c44c7f2ff32" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_1235aa73-7298-40d9-8242-a850384b7e17" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_9632646f-799b-438b-bd4d-5c44c7f2ff32" xlink:to="loc_us-gaap_AccountsPayableCurrent_1235aa73-7298-40d9-8242-a850384b7e17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrent_dd78df4f-79e1-4eb6-99bb-3c129661bf50" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestPayableCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_9632646f-799b-438b-bd4d-5c44c7f2ff32" xlink:to="loc_us-gaap_InterestPayableCurrent_dd78df4f-79e1-4eb6-99bb-3c129661bf50" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent_0ee779c6-aeb3-4651-aa6b-bca1872dc401" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_9632646f-799b-438b-bd4d-5c44c7f2ff32" xlink:to="loc_us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent_0ee779c6-aeb3-4651-aa6b-bca1872dc401" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_b29eb357-7f15-4609-9190-72b8a7385534" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_9632646f-799b-438b-bd4d-5c44c7f2ff32" xlink:to="loc_us-gaap_LongTermDebtCurrent_b29eb357-7f15-4609-9190-72b8a7385534" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_b2ddc9b8-a42a-4812-9bee-062fe554cfca" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_ae5818ef-5e39-4b35-9e16-133e2c76aef2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b2ddc9b8-a42a-4812-9bee-062fe554cfca" xlink:to="loc_us-gaap_PreferredStockValue_ae5818ef-5e39-4b35-9e16-133e2c76aef2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_e2c4e2ba-efc7-400f-8066-c5b08a4437d3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b2ddc9b8-a42a-4812-9bee-062fe554cfca" xlink:to="loc_us-gaap_CommonStockValue_e2c4e2ba-efc7-400f-8066-c5b08a4437d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_65faa1e5-2d58-419e-84eb-bff6dae0a928" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TreasuryStockValue"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b2ddc9b8-a42a-4812-9bee-062fe554cfca" xlink:to="loc_us-gaap_TreasuryStockValue_65faa1e5-2d58-419e-84eb-bff6dae0a928" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_8df407ae-c7c4-4fc1-acdf-5003baa5ce95" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b2ddc9b8-a42a-4812-9bee-062fe554cfca" xlink:to="loc_us-gaap_AdditionalPaidInCapital_8df407ae-c7c4-4fc1-acdf-5003baa5ce95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_c9130b4d-4920-40ff-914e-f58e09a1df0a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b2ddc9b8-a42a-4812-9bee-062fe554cfca" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_c9130b4d-4920-40ff-914e-f58e09a1df0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_39576d3b-4d6f-46fd-9e53-d52440cf755f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_b2ddc9b8-a42a-4812-9bee-062fe554cfca" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_39576d3b-4d6f-46fd-9e53-d52440cf755f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_851c14b9-7cea-4599-bffd-169421c5c382" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3207b604-e956-41c1-8a56-562cca22989a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_851c14b9-7cea-4599-bffd-169421c5c382" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_3207b604-e956-41c1-8a56-562cca22989a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_ef4666fb-9aae-435d-b275-7a80501cfca5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_851c14b9-7cea-4599-bffd-169421c5c382" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_ef4666fb-9aae-435d-b275-7a80501cfca5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_e3809237-5729-482c-8afb-b468ea2d7252" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InventoryNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_851c14b9-7cea-4599-bffd-169421c5c382" xlink:to="loc_us-gaap_InventoryNet_e3809237-5729-482c-8afb-b468ea2d7252" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_cf813296-c47e-4814-bd6c-be867602d9cd" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_851c14b9-7cea-4599-bffd-169421c5c382" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_cf813296-c47e-4814-bd6c-be867602d9cd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_61946d8e-2cec-495c-81a3-87eedd4d4a1d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_851c14b9-7cea-4599-bffd-169421c5c382" xlink:to="loc_us-gaap_OtherAssetsCurrent_61946d8e-2cec-495c-81a3-87eedd4d4a1d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_9061f7b6-a1bd-4916-98fc-29637ccd5655" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_f025a772-eb2b-4985-a150-4d8739e012bc" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_9061f7b6-a1bd-4916-98fc-29637ccd5655" xlink:to="loc_us-gaap_Liabilities_f025a772-eb2b-4985-a150-4d8739e012bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_cc08954e-0e4d-4ed9-93d4-e744013af1e4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_9061f7b6-a1bd-4916-98fc-29637ccd5655" xlink:to="loc_us-gaap_StockholdersEquity_cc08954e-0e4d-4ed9-93d4-e744013af1e4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_cebbbc7d-0378-4659-816e-77be46f1b2a4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_9061f7b6-a1bd-4916-98fc-29637ccd5655" xlink:to="loc_us-gaap_CommitmentsAndContingencies_cebbbc7d-0378-4659-816e-77be46f1b2a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_134ebe1c-5905-4d35-9297-c452e09922c1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_1cd274fb-ef52-46a6-b52a-9c0dcd606e19" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_134ebe1c-5905-4d35-9297-c452e09922c1" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_1cd274fb-ef52-46a6-b52a-9c0dcd606e19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_812f5150-2209-435f-a582-7a59915cdf33" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_134ebe1c-5905-4d35-9297-c452e09922c1" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_812f5150-2209-435f-a582-7a59915cdf33" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_atk_WarrantLiabilities_a103660c-5383-4ac3-9645-ce62f755754b" xlink:href="atk-20220528.xsd#atk_WarrantLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_134ebe1c-5905-4d35-9297-c452e09922c1" xlink:to="loc_atk_WarrantLiabilities_a103660c-5383-4ac3-9645-ce62f755754b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_af6d9085-d4f2-48c6-b696-80222732fb6b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_134ebe1c-5905-4d35-9297-c452e09922c1" xlink:to="loc_us-gaap_LiabilitiesCurrent_af6d9085-d4f2-48c6-b696-80222732fb6b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_9caba761-34dc-4cae-b4d4-092059f5b7d7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_134ebe1c-5905-4d35-9297-c452e09922c1" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_9caba761-34dc-4cae-b4d4-092059f5b7d7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.atkins.com/role/CondensedConsolidatedStatementsofOperationsandComprehensiveIncome" xlink:type="simple" xlink:href="atk-20220528.xsd#CondensedConsolidatedStatementsofOperationsandComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.atkins.com/role/CondensedConsolidatedStatementsofOperationsandComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_5814fa18-d996-4c19-b643-9117dd37e0a6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c9b720df-02d6-4ab0-abfc-cb5adc9498ee" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_5814fa18-d996-4c19-b643-9117dd37e0a6" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c9b720df-02d6-4ab0-abfc-cb5adc9498ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_5176a45e-506f-4e8d-b945-815e3207ab8c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_5814fa18-d996-4c19-b643-9117dd37e0a6" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_5176a45e-506f-4e8d-b945-815e3207ab8c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_fe1b26b7-9259-49bf-a9d0-740841e4c3b6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_327e19eb-2380-40d5-aae3-7e5b577e3737" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_fe1b26b7-9259-49bf-a9d0-740841e4c3b6" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_327e19eb-2380-40d5-aae3-7e5b577e3737" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_fbf5d389-f889-418d-a154-8457c7a85366" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_fe1b26b7-9259-49bf-a9d0-740841e4c3b6" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_fbf5d389-f889-418d-a154-8457c7a85366" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_a225102b-119b-4629-8982-2a53f78dbe89" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingExpense_48fecbfa-c3aa-4703-ac51-b631645cc1bf" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SellingExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_a225102b-119b-4629-8982-2a53f78dbe89" xlink:to="loc_us-gaap_SellingExpense_48fecbfa-c3aa-4703-ac51-b631645cc1bf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_22116b2a-81b2-4786-a93d-cbdf3f47320b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_a225102b-119b-4629-8982-2a53f78dbe89" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_22116b2a-81b2-4786-a93d-cbdf3f47320b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationNonproduction_59100ba1-de1d-4900-b45e-c23549251d53" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepreciationNonproduction"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_a225102b-119b-4629-8982-2a53f78dbe89" xlink:to="loc_us-gaap_DepreciationNonproduction_59100ba1-de1d-4900-b45e-c23549251d53" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_e2ca437a-956e-449c-84bf-53409e0ac336" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_c5542c28-8329-4822-acb6-e8f8f9eb21f7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_e2ca437a-956e-449c-84bf-53409e0ac336" xlink:to="loc_us-gaap_GrossProfit_c5542c28-8329-4822-acb6-e8f8f9eb21f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_81bba4d4-2f82-49c6-827f-1176ff6751d7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_e2ca437a-956e-449c-84bf-53409e0ac336" xlink:to="loc_us-gaap_OperatingExpenses_81bba4d4-2f82-49c6-827f-1176ff6751d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_45f5a638-27d7-4c59-8c62-355d61cced84" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_f79e8d84-7b21-4a08-b792-1cd1904e23b2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_45f5a638-27d7-4c59-8c62-355d61cced84" xlink:to="loc_us-gaap_NetIncomeLoss_f79e8d84-7b21-4a08-b792-1cd1904e23b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_1086a9f9-5076-4be5-9eb1-c506ab81640b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_45f5a638-27d7-4c59-8c62-355d61cced84" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_1086a9f9-5076-4be5-9eb1-c506ab81640b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_fb4bbd0d-e9a4-4fef-8179-f0fb89d1def9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_fdb1c621-244f-4a3d-8b67-ce848324c186" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_fb4bbd0d-e9a4-4fef-8179-f0fb89d1def9" xlink:to="loc_us-gaap_OperatingIncomeLoss_fdb1c621-244f-4a3d-8b67-ce848324c186" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_014ff01b-601e-48ee-b7f8-dc4559862211" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_fb4bbd0d-e9a4-4fef-8179-f0fb89d1def9" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_014ff01b-601e-48ee-b7f8-dc4559862211" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_2c90bd0a-9e83-4f5e-b654-b7f905b04e27" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOther_d42ed290-b56d-4c74-bab5-bb42ae8a13e3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeOther"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2c90bd0a-9e83-4f5e-b654-b7f905b04e27" xlink:to="loc_us-gaap_InterestIncomeOther_d42ed290-b56d-4c74-bab5-bb42ae8a13e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_15c9ceca-6460-496f-bd16-c75805e9c9f5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2c90bd0a-9e83-4f5e-b654-b7f905b04e27" xlink:to="loc_us-gaap_InterestExpense_15c9ceca-6460-496f-bd16-c75805e9c9f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_93411242-b6a2-4b9a-9941-8676cf714512" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2c90bd0a-9e83-4f5e-b654-b7f905b04e27" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_93411242-b6a2-4b9a-9941-8676cf714512" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossRelatedToLitigationSettlement_2bb94b00-dc6c-48dc-aea1-5ce341e9d7fe" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossRelatedToLitigationSettlement"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2c90bd0a-9e83-4f5e-b654-b7f905b04e27" xlink:to="loc_us-gaap_GainLossRelatedToLitigationSettlement_2bb94b00-dc6c-48dc-aea1-5ce341e9d7fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_51ce467f-de0a-400c-aaf7-44fd9a34359e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2c90bd0a-9e83-4f5e-b654-b7f905b04e27" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_51ce467f-de0a-400c-aaf7-44fd9a34359e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_b66c69a5-e8ff-48e3-91ac-dec16ebe5614" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_2c90bd0a-9e83-4f5e-b654-b7f905b04e27" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_b66c69a5-e8ff-48e3-91ac-dec16ebe5614" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.atkins.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="atk-20220528.xsd#CondensedConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.atkins.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_c24873be-0ac5-432e-8adc-fb310e491827" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_NetIncomeLoss_c24873be-0ac5-432e-8adc-fb310e491827" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_e3e3f43d-ffb8-402c-aadc-90a3c0d6688a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_DepreciationAndAmortization_e3e3f43d-ffb8-402c-aadc-90a3c0d6688a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_64d8f1d4-2379-4bd6-a971-22d607f6c39f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_64d8f1d4-2379-4bd6-a971-22d607f6c39f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_6322befe-b345-49f1-9a65-e707d1a2627e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_ShareBasedCompensation_6322befe-b345-49f1-9a65-e707d1a2627e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_69a982ef-2777-45de-b8c5-a705426e428d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_69a982ef-2777-45de-b8c5-a705426e428d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerReceivableCreditLossExpenseReversal_84d45d3e-aac4-4d70-b998-0b3635a8cf76" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ContractWithCustomerReceivableCreditLossExpenseReversal"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_ContractWithCustomerReceivableCreditLossExpenseReversal_84d45d3e-aac4-4d70-b998-0b3635a8cf76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealized_7dffecd9-05d3-4a6f-bbe9-632ab0391041" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ForeignCurrencyTransactionGainLossUnrealized"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealized_7dffecd9-05d3-4a6f-bbe9-632ab0391041" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_04bf0465-cc04-45cb-baa5-b74f274586b9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_04bf0465-cc04-45cb-baa5-b74f274586b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_4f6b90e5-55c1-4fcd-a0db-e0cf9eed191e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_4f6b90e5-55c1-4fcd-a0db-e0cf9eed191e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseImpairmentLoss_615296be-98d0-44ff-ae1c-82f3f98cc8d5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseImpairmentLoss"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_OperatingLeaseImpairmentLoss_615296be-98d0-44ff-ae1c-82f3f98cc8d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnTerminationOfLease_bc75c410-af52-47c2-8342-893d9f841d00" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossOnTerminationOfLease"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_GainLossOnTerminationOfLease_bc75c410-af52-47c2-8342-893d9f841d00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_3b6673d5-5a6b-4942-bf9a-1bb1ff161692" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_3b6673d5-5a6b-4942-bf9a-1bb1ff161692" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_7699e423-8d60-498b-af3c-ddb7d4534cfa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_7699e423-8d60-498b-af3c-ddb7d4534cfa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_21ad9bf5-e898-4337-98f2-f6e1c8cf624d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_21ad9bf5-e898-4337-98f2-f6e1c8cf624d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_e6a11eb1-9535-4dba-85f0-f68dcdf21aca" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_e6a11eb1-9535-4dba-85f0-f68dcdf21aca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_8860471a-9174-476d-a9d4-16794a13707d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_8860471a-9174-476d-a9d4-16794a13707d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_e195f092-82d9-4a6b-96ca-3b0bf90843f1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_e195f092-82d9-4a6b-96ca-3b0bf90843f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_d01a0b80-a823-4daa-8edb-165e8b3abec1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_d01a0b80-a823-4daa-8edb-165e8b3abec1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_88e0193a-d36e-4566-a67e-2c56a9c77a08" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_88e0193a-d36e-4566-a67e-2c56a9c77a08" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_3f425e37-6091-4a3c-9e95-43f4bceba6f1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:calculationArc order="20" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_80de4d90-f16c-414e-8487-fa2328da7054" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_3f425e37-6091-4a3c-9e95-43f4bceba6f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6371ed67-c126-41d1-8093-10b49c3239c2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_960019f1-8165-4e06-9748-ba2f9a489466" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6371ed67-c126-41d1-8093-10b49c3239c2" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_960019f1-8165-4e06-9748-ba2f9a489466" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_a7ab2f37-d5cf-4595-999c-81b54d593567" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6371ed67-c126-41d1-8093-10b49c3239c2" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_a7ab2f37-d5cf-4595-999c-81b54d593567" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfFinancingCosts_f7fc0536-4712-4049-a76d-029489dbcf9f" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfFinancingCosts"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6371ed67-c126-41d1-8093-10b49c3239c2" xlink:to="loc_us-gaap_PaymentsOfFinancingCosts_f7fc0536-4712-4049-a76d-029489dbcf9f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_fee4f490-6f1e-4180-8207-116f27c37b5c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6371ed67-c126-41d1-8093-10b49c3239c2" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_fee4f490-6f1e-4180-8207-116f27c37b5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_b57ca540-4b1e-4a9b-a4f3-03051675d76b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6371ed67-c126-41d1-8093-10b49c3239c2" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_b57ca540-4b1e-4a9b-a4f3-03051675d76b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_e9d8ccc0-0d4c-436c-9ec2-b813acfbe1d2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6371ed67-c126-41d1-8093-10b49c3239c2" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_e9d8ccc0-0d4c-436c-9ec2-b813acfbe1d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_8325a800-20f7-4a8c-901c-4f818b5ae5b3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d04c8a8a-e04f-4ead-b66b-fca8ed89c7c8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_8325a800-20f7-4a8c-901c-4f818b5ae5b3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d04c8a8a-e04f-4ead-b66b-fca8ed89c7c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a391fc34-b09d-4a85-8f56-9a99e298d5e8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_8325a800-20f7-4a8c-901c-4f818b5ae5b3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a391fc34-b09d-4a85-8f56-9a99e298d5e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_fda5ab78-0847-41b9-99be-3f0dc5dd256d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_8325a800-20f7-4a8c-901c-4f818b5ae5b3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_fda5ab78-0847-41b9-99be-3f0dc5dd256d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a39d5689-cc6b-4e19-a53d-7ec25b331ed0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInNotesReceivables_91116d34-4322-483d-986e-be4fb3143684" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInNotesReceivables"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a39d5689-cc6b-4e19-a53d-7ec25b331ed0" xlink:to="loc_us-gaap_IncreaseDecreaseInNotesReceivables_91116d34-4322-483d-986e-be4fb3143684" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireIntangibleAssets_5340fbc4-6415-4d6e-bca8-2d7519efe6de" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireIntangibleAssets"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a39d5689-cc6b-4e19-a53d-7ec25b331ed0" xlink:to="loc_us-gaap_PaymentsToAcquireIntangibleAssets_5340fbc4-6415-4d6e-bca8-2d7519efe6de" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f91119d3-bb26-4dc5-868c-e87f4d2112d2" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a39d5689-cc6b-4e19-a53d-7ec25b331ed0" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f91119d3-bb26-4dc5-868c-e87f4d2112d2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_2dca03ec-fc24-4a33-97c7-66b756991edf" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a39d5689-cc6b-4e19-a53d-7ec25b331ed0" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_2dca03ec-fc24-4a33-97c7-66b756991edf" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.atkins.com/role/ScheduleofIntangibleAssetsDetails" xlink:type="simple" xlink:href="atk-20220528.xsd#ScheduleofIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.atkins.com/role/ScheduleofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_d278750b-9fea-4675-b489-ecb609a733c6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_d5b71da2-ca85-4ab1-bde1-e9766f2fefa0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_d278750b-9fea-4675-b489-ecb609a733c6" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_d5b71da2-ca85-4ab1-bde1-e9766f2fefa0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_4718c229-6b80-4484-81f9-203e803428e3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_d278750b-9fea-4675-b489-ecb609a733c6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_4718c229-6b80-4484-81f9-203e803428e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_e6bc70f8-c025-4200-a730-7f9debc0c6c6" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_620d7461-5217-4b1d-9351-cc6ac78a4576" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_e6bc70f8-c025-4200-a730-7f9debc0c6c6" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_620d7461-5217-4b1d-9351-cc6ac78a4576" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_02257d12-607c-4ee0-a485-86723e51e29d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_e6bc70f8-c025-4200-a730-7f9debc0c6c6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_02257d12-607c-4ee0-a485-86723e51e29d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_0dfc3772-bd85-431a-a9dc-36038e75ed5a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_f9edbc3e-ae37-48df-90b0-99567d854ed9" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_0dfc3772-bd85-431a-a9dc-36038e75ed5a" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_f9edbc3e-ae37-48df-90b0-99567d854ed9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_d800512d-be2f-4737-b45c-acf4582057d8" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_0dfc3772-bd85-431a-a9dc-36038e75ed5a" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_d800512d-be2f-4737-b45c-acf4582057d8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.atkins.com/role/EstimatedFutureAmortizationDetails" xlink:type="simple" xlink:href="atk-20220528.xsd#EstimatedFutureAmortizationDetails"/>
  <link:calculationLink xlink:role="http://www.atkins.com/role/EstimatedFutureAmortizationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d363f2d4-7c39-45c4-90d0-afb57c7ecaa4" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_43e6b93c-a007-48dc-b373-913f22155adb" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d363f2d4-7c39-45c4-90d0-afb57c7ecaa4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_43e6b93c-a007-48dc-b373-913f22155adb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_0712f09f-c465-4f0d-ac15-3ac20eccc766" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d363f2d4-7c39-45c4-90d0-afb57c7ecaa4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_0712f09f-c465-4f0d-ac15-3ac20eccc766" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_3fb67a59-c646-49a2-b2ba-cab8adda652a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d363f2d4-7c39-45c4-90d0-afb57c7ecaa4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_3fb67a59-c646-49a2-b2ba-cab8adda652a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_e97f7649-580e-4e64-90f9-006777708bbd" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d363f2d4-7c39-45c4-90d0-afb57c7ecaa4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_e97f7649-580e-4e64-90f9-006777708bbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_789535be-ada2-4730-9566-284123cf54aa" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d363f2d4-7c39-45c4-90d0-afb57c7ecaa4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_789535be-ada2-4730-9566-284123cf54aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_3c6228c6-6b72-4923-8866-7697a3dd3217" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d363f2d4-7c39-45c4-90d0-afb57c7ecaa4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_3c6228c6-6b72-4923-8866-7697a3dd3217" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.atkins.com/role/LeasesDetails" xlink:type="simple" xlink:href="atk-20220528.xsd#LeasesDetails"/>
  <link:calculationLink xlink:role="http://www.atkins.com/role/LeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b559b03d-0f01-4841-9ff7-401a614e2a04" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_01cc5aaa-26bc-484a-90cf-39344f069e94" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b559b03d-0f01-4841-9ff7-401a614e2a04" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_01cc5aaa-26bc-484a-90cf-39344f069e94" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_bd335fb6-1695-4e98-bf9f-8db9a8be19d5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b559b03d-0f01-4841-9ff7-401a614e2a04" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_bd335fb6-1695-4e98-bf9f-8db9a8be19d5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_4fc6aa12-cc6a-499c-a774-7027dd1ba396" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b559b03d-0f01-4841-9ff7-401a614e2a04" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_4fc6aa12-cc6a-499c-a774-7027dd1ba396" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_190e1c92-1bba-43c8-bdad-95db68284d0e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b559b03d-0f01-4841-9ff7-401a614e2a04" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_190e1c92-1bba-43c8-bdad-95db68284d0e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_641ebc6e-c78b-4a52-ba6f-de1043fe6f01" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b559b03d-0f01-4841-9ff7-401a614e2a04" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_641ebc6e-c78b-4a52-ba6f-de1043fe6f01" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_atk_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_5ae0f785-e840-4b48-8bf8-169e8a337983" xlink:href="atk-20220528.xsd#atk_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_b559b03d-0f01-4841-9ff7-401a614e2a04" xlink:to="loc_atk_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_5ae0f785-e840-4b48-8bf8-169e8a337983" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_4e3584cf-6fee-49d9-9d3a-ae3e643a6349" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseExpense_79b33185-faa7-4485-a2d1-424c03f2f13e" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_4e3584cf-6fee-49d9-9d3a-ae3e643a6349" xlink:to="loc_us-gaap_OperatingLeaseExpense_79b33185-faa7-4485-a2d1-424c03f2f13e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_atk_Financeleasecost_33c02194-994a-43c8-93f0-9ac1f0fda830" xlink:href="atk-20220528.xsd#atk_Financeleasecost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_4e3584cf-6fee-49d9-9d3a-ae3e643a6349" xlink:to="loc_atk_Financeleasecost_33c02194-994a-43c8-93f0-9ac1f0fda830" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_atk_Leaseliability_7101ef2d-3b9e-4f5d-bbc0-b660d2c35d29" xlink:href="atk-20220528.xsd#atk_Leaseliability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_e7ebb383-333a-4c89-9dfa-ff27a87bf57b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_atk_Leaseliability_7101ef2d-3b9e-4f5d-bbc0-b660d2c35d29" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_e7ebb383-333a-4c89-9dfa-ff27a87bf57b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_717a9be6-73c4-4b7e-b48e-7215e8928f25" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_atk_Leaseliability_7101ef2d-3b9e-4f5d-bbc0-b660d2c35d29" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_717a9be6-73c4-4b7e-b48e-7215e8928f25" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_b7181df9-a677-4437-bd70-0baf06a338b5" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_atk_Leaseliability_7101ef2d-3b9e-4f5d-bbc0-b660d2c35d29" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_b7181df9-a677-4437-bd70-0baf06a338b5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_9a508547-b7d4-4abe-acd5-c60c569ee99b" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_atk_Leaseliability_7101ef2d-3b9e-4f5d-bbc0-b660d2c35d29" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_9a508547-b7d4-4abe-acd5-c60c569ee99b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_atk_Leaserightofuseasset_7f50b19a-745f-4c32-b199-e407b18a3d29" xlink:href="atk-20220528.xsd#atk_Leaserightofuseasset"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_31861891-7c0f-4eb7-b2b1-7c19db186849" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_atk_Leaserightofuseasset_7f50b19a-745f-4c32-b199-e407b18a3d29" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_31861891-7c0f-4eb7-b2b1-7c19db186849" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_a452d6d5-7028-4f24-b307-88ee7ebf7cf3" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_atk_Leaserightofuseasset_7f50b19a-745f-4c32-b199-e407b18a3d29" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_a452d6d5-7028-4f24-b307-88ee7ebf7cf3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseExpense_e9fffe11-89dc-485d-89b5-08b36fd4f66a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_e3c9c9d1-f734-4679-9fd4-73a3bbec3ca1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseExpense_e9fffe11-89dc-485d-89b5-08b36fd4f66a" xlink:to="loc_us-gaap_OperatingLeaseCost_e3c9c9d1-f734-4679-9fd4-73a3bbec3ca1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_d5462b5f-cc1b-41d0-a657-60ad66b4af3d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableLeaseCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseExpense_e9fffe11-89dc-485d-89b5-08b36fd4f66a" xlink:to="loc_us-gaap_VariableLeaseCost_d5462b5f-cc1b-41d0-a657-60ad66b4af3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_atk_Financeleasecost_4f695031-0972-4c5a-a48a-917e93ef7cb7" xlink:href="atk-20220528.xsd#atk_Financeleasecost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_035d2fbc-c6a0-43f4-b44d-348cc8a98343" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_atk_Financeleasecost_4f695031-0972-4c5a-a48a-917e93ef7cb7" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_035d2fbc-c6a0-43f4-b44d-348cc8a98343" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_246c8b33-75ae-4dea-9f44-5ec6697bcb18" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_atk_Financeleasecost_4f695031-0972-4c5a-a48a-917e93ef7cb7" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_246c8b33-75ae-4dea-9f44-5ec6697bcb18" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_65074178-1cb0-4347-ac64-bc6b183d655c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_c21e6e77-4323-42be-87d8-0332d35cdf9c" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_65074178-1cb0-4347-ac64-bc6b183d655c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_c21e6e77-4323-42be-87d8-0332d35cdf9c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_70cfb209-f557-4693-838c-51acec05aa3d" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_65074178-1cb0-4347-ac64-bc6b183d655c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_70cfb209-f557-4693-838c-51acec05aa3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_ad6e0b67-53f9-488e-9bd6-417130ff73c0" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_65074178-1cb0-4347-ac64-bc6b183d655c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_ad6e0b67-53f9-488e-9bd6-417130ff73c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_07b87308-c8f7-4b1f-be19-aff4fd154af7" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_65074178-1cb0-4347-ac64-bc6b183d655c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_07b87308-c8f7-4b1f-be19-aff4fd154af7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_de95f767-821e-4e6a-b3de-776e7c1fc390" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_65074178-1cb0-4347-ac64-bc6b183d655c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_de95f767-821e-4e6a-b3de-776e7c1fc390" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_atk_FinanceLeaseLiabilityToBePaidAfterYearFour_300cb53b-e5ad-4735-a832-5ba39b546664" xlink:href="atk-20220528.xsd#atk_FinanceLeaseLiabilityToBePaidAfterYearFour"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_65074178-1cb0-4347-ac64-bc6b183d655c" xlink:to="loc_atk_FinanceLeaseLiabilityToBePaidAfterYearFour_300cb53b-e5ad-4735-a832-5ba39b546664" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.atkins.com/role/EarningsPerShareDetails" xlink:type="simple" xlink:href="atk-20220528.xsd#EarningsPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.atkins.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2a5c8145-fe46-45ce-8513-c439844f2c78" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_ae49e6ac-d748-4c2a-8944-eebefba8cd49" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2a5c8145-fe46-45ce-8513-c439844f2c78" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_ae49e6ac-d748-4c2a-8944-eebefba8cd49" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_atk_IncrementalCommonSharesAttributabletoDilutiveEffectofStockOptions_8945a693-216f-4619-99cd-d3248f6a83e5" xlink:href="atk-20220528.xsd#atk_IncrementalCommonSharesAttributabletoDilutiveEffectofStockOptions"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2a5c8145-fe46-45ce-8513-c439844f2c78" xlink:to="loc_atk_IncrementalCommonSharesAttributabletoDilutiveEffectofStockOptions_8945a693-216f-4619-99cd-d3248f6a83e5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_6bb3ebe0-9931-46e0-bafa-e9cfaa74207a" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2a5c8145-fe46-45ce-8513-c439844f2c78" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_6bb3ebe0-9931-46e0-bafa-e9cfaa74207a" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
