<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.atkins.com/20190831" xmlns:atk="http://www.atkins.com/20190831" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/srt/2018-01-31" schemaLocation="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-gaap/2018-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2018-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2018/elts/us-roles-2018-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2018-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2018/elts/us-types-2018-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2017-01-31" schemaLocation="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2019-01-31" schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2018-01-31" schemaLocation="https://xbrl.sec.gov/exch/2018/exch-2018-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2017-01-31" schemaLocation="http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2018-01-31" schemaLocation="https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="atk-20190831_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="atk-20190831_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="atk-20190831_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="atk-20190831_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="AccruedExpensesAndOtherCurrentLiabilities" roleURI="http://www.atkins.com/role/AccruedExpensesAndOtherCurrentLiabilities">
        <link:definition>2108100 - Disclosure - Accrued Expenses and Other Current Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedExpensesAndOtherCurrentLiabilitiesDetails" roleURI="http://www.atkins.com/role/AccruedExpensesAndOtherCurrentLiabilitiesDetails">
        <link:definition>2408402 - Disclosure - Accrued Expenses and Other Current Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedExpensesAndOtherCurrentLiabilitiesTables" roleURI="http://www.atkins.com/role/AccruedExpensesAndOtherCurrentLiabilitiesTables">
        <link:definition>2308301 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ChangeInAccountingPrincipleDetails" roleURI="http://www.atkins.com/role/ChangeInAccountingPrincipleDetails">
        <link:definition>2402402 - Disclosure - Change in Accounting Principle (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ChangeInAccountingPrincipleNotes" roleURI="http://www.atkins.com/role/ChangeInAccountingPrincipleNotes">
        <link:definition>2102100 - Disclosure - Change in Accounting Principle (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ChangeInAccountingPrincipleTables" roleURI="http://www.atkins.com/role/ChangeInAccountingPrincipleTables">
        <link:definition>2302301 - Disclosure - Change in Accounting Principle (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingencies" roleURI="http://www.atkins.com/role/CommitmentsAndContingencies">
        <link:definition>2112100 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingenciesDetails" roleURI="http://www.atkins.com/role/CommitmentsAndContingenciesDetails">
        <link:definition>2412402 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingenciesTables" roleURI="http://www.atkins.com/role/CommitmentsAndContingenciesTables">
        <link:definition>2312301 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheets" roleURI="http://www.atkins.com/role/ConsolidatedBalanceSheets">
        <link:definition>1001000 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsParentheticals" roleURI="http://www.atkins.com/role/ConsolidatedBalanceSheetsParentheticals">
        <link:definition>1001501 - Statement - Consolidated Balance Sheets (Parentheticals)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementOfStockholdersEquityDeficit" roleURI="http://www.atkins.com/role/ConsolidatedStatementOfStockholdersEquityDeficit">
        <link:definition>1004000 - Statement - Consolidated Statement of Stockholders' Equity (Deficit)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlows" roleURI="http://www.atkins.com/role/ConsolidatedStatementsOfCashFlows">
        <link:definition>1003000 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfOperationsAndComprehensiveIncome" roleURI="http://www.atkins.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncome">
        <link:definition>1002000 - Statement - Consolidated Statements of Operations and Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DocumentAndEntityInformation" roleURI="http://www.atkins.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShare" roleURI="http://www.atkins.com/role/EarningsPerShare">
        <link:definition>2114100 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareDetails" roleURI="http://www.atkins.com/role/EarningsPerShareDetails">
        <link:definition>2414402 - Disclosure - Earnings Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareTables" roleURI="http://www.atkins.com/role/EarningsPerShareTables">
        <link:definition>2314301 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueOfFinancialInstruments" roleURI="http://www.atkins.com/role/FairValueOfFinancialInstruments">
        <link:definition>2110100 - Disclosure - Fair Value of Financial Instruments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueOfFinancialInstrumentsDetails" roleURI="http://www.atkins.com/role/FairValueOfFinancialInstrumentsDetails">
        <link:definition>2410402 - Disclosure - Fair Value of Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueOfFinancialInstrumentsTables" roleURI="http://www.atkins.com/role/FairValueOfFinancialInstrumentsTables">
        <link:definition>2310301 - Disclosure - Fair Value of Financial Instruments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangibles" roleURI="http://www.atkins.com/role/GoodwillAndIntangibles">
        <link:definition>2107100 - Disclosure - Goodwill and Intangibles</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangiblesScheduleOfGoodwillDetails" roleURI="http://www.atkins.com/role/GoodwillAndIntangiblesScheduleOfGoodwillDetails">
        <link:definition>2407402 - Disclosure - Goodwill and Intangibles - Schedule of Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangiblesScheduleOfIntangibleAssetsDetails" roleURI="http://www.atkins.com/role/GoodwillAndIntangiblesScheduleOfIntangibleAssetsDetails">
        <link:definition>2407403 - Disclosure - Goodwill and Intangibles - Schedule of Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillAndIntangiblesTables" roleURI="http://www.atkins.com/role/GoodwillAndIntangiblesTables">
        <link:definition>2307301 - Disclosure - Goodwill and Intangibles (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.atkins.com/role/IncomeTaxes">
        <link:definition>2111100 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesComponentsOfIncomeTaxDetails" roleURI="http://www.atkins.com/role/IncomeTaxesComponentsOfIncomeTaxDetails">
        <link:definition>2411403 - Disclosure - Income Taxes - Components of Income Tax (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" roleURI="http://www.atkins.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails">
        <link:definition>2411404 - Disclosure - Income Taxes - Deferred Tax Assets and Liabilities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://www.atkins.com/role/IncomeTaxesNarrativeDetails">
        <link:definition>2411402 - Disclosure - Income Taxes - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://www.atkins.com/role/IncomeTaxesTables">
        <link:definition>2311301 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtAndLineOfCredit" roleURI="http://www.atkins.com/role/LongTermDebtAndLineOfCredit">
        <link:definition>2109100 - Disclosure - Long-Term Debt and Line of Credit</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtAndLineOfCreditNarrativeDetails" roleURI="http://www.atkins.com/role/LongTermDebtAndLineOfCreditNarrativeDetails">
        <link:definition>2409402 - Disclosure - Long-Term Debt and Line of Credit - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtAndLineOfCreditScheduleOfDebtDetails" roleURI="http://www.atkins.com/role/LongTermDebtAndLineOfCreditScheduleOfDebtDetails">
        <link:definition>2409403 - Disclosure - Long-Term Debt and Line of Credit - Schedule of Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtAndLineOfCreditTables" roleURI="http://www.atkins.com/role/LongTermDebtAndLineOfCreditTables">
        <link:definition>2309301 - Disclosure - Long-Term Debt and Line of Credit (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NatureOfOperationsAndPrinciplesOfConsolidation" roleURI="http://www.atkins.com/role/NatureOfOperationsAndPrinciplesOfConsolidation">
        <link:definition>2101100 - Disclosure - Nature of Operations and Principles of Consolidation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNet" roleURI="http://www.atkins.com/role/PropertyAndEquipmentNet">
        <link:definition>2106100 - Disclosure - Property and Equipment, Net</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNetDetails" roleURI="http://www.atkins.com/role/PropertyAndEquipmentNetDetails">
        <link:definition>2406402 - Disclosure - Property and Equipment, Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentNetTables" roleURI="http://www.atkins.com/role/PropertyAndEquipmentNetTables">
        <link:definition>2306301 - Disclosure - Property and Equipment, Net (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactions" roleURI="http://www.atkins.com/role/RelatedPartyTransactions">
        <link:definition>2118100 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsDetails" roleURI="http://www.atkins.com/role/RelatedPartyTransactionsDetails">
        <link:definition>2418401 - Disclosure - Related Party Transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionNotes" roleURI="http://www.atkins.com/role/RevenueRecognitionNotes">
        <link:definition>2105100 - Disclosure - Revenue Recognition (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenueRecognitionPolicies" roleURI="http://www.atkins.com/role/RevenueRecognitionPolicies">
        <link:definition>2205201 - Disclosure - Revenue Recognition (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndCustomerInformation" roleURI="http://www.atkins.com/role/SegmentAndCustomerInformation">
        <link:definition>2119100 - Disclosure - Segment and Customer Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndCustomerInformationDetails" roleURI="http://www.atkins.com/role/SegmentAndCustomerInformationDetails">
        <link:definition>2419402 - Disclosure - Segment and Customer Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndCustomerInformationScheduleOfRevenueFromExternalCustomersAndLongLivedAssetsByGeographicalAreasDetails" roleURI="http://www.atkins.com/role/SegmentAndCustomerInformationScheduleOfRevenueFromExternalCustomersAndLongLivedAssetsByGeographicalAreasDetails">
        <link:definition>2419403 - Disclosure - Segment and Customer Information - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndCustomerInformationSchedulesOfConcentrationOfRiskByRiskFactorDetails" roleURI="http://www.atkins.com/role/SegmentAndCustomerInformationSchedulesOfConcentrationOfRiskByRiskFactorDetails">
        <link:definition>2419404 - Disclosure - Segment and Customer Information - Schedules of Concentration of Risk, by Risk Factor (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentAndCustomerInformationTables" roleURI="http://www.atkins.com/role/SegmentAndCustomerInformationTables">
        <link:definition>2319301 - Disclosure - Segment and Customer Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlan" roleURI="http://www.atkins.com/role/StockOptionPlan">
        <link:definition>2116100 - Disclosure - Stock Option Plan</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlanDetails" roleURI="http://www.atkins.com/role/StockOptionPlanDetails">
        <link:definition>2416402 - Disclosure - Stock Option Plan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlanFairValueAssumptionsDetails" roleURI="http://www.atkins.com/role/StockOptionPlanFairValueAssumptionsDetails">
        <link:definition>2416405 - Disclosure - Stock Option Plan - Fair Value Assumptions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlanPerformanceStockUnitsActivityDetails" roleURI="http://www.atkins.com/role/StockOptionPlanPerformanceStockUnitsActivityDetails">
        <link:definition>2416407 - Disclosure - Stock Option Plan - Performance Stock Units Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlanPredecessorShareBasedCompensationDetails" roleURI="http://www.atkins.com/role/StockOptionPlanPredecessorShareBasedCompensationDetails">
        <link:definition>2416408 - Disclosure - Stock Option Plan - Predecessor Share-Based Compensation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlanRangeOfExercisePricesDetails" roleURI="http://www.atkins.com/role/StockOptionPlanRangeOfExercisePricesDetails">
        <link:definition>2416404 - Disclosure - Stock Option Plan - Range of Exercise Prices (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlanRestrictedStockUnitActivityDetails" roleURI="http://www.atkins.com/role/StockOptionPlanRestrictedStockUnitActivityDetails">
        <link:definition>2416406 - Disclosure - Stock Option Plan - Restricted Stock Unit Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlanStockOptionActivityDetails" roleURI="http://www.atkins.com/role/StockOptionPlanStockOptionActivityDetails">
        <link:definition>2416403 - Disclosure - Stock Option Plan - Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockOptionPlanTables" roleURI="http://www.atkins.com/role/StockOptionPlanTables">
        <link:definition>2316301 - Disclosure - Stock Option Plan (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity" roleURI="http://www.atkins.com/role/StockholdersEquity">
        <link:definition>2113100 - Disclosure - Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityDetails" roleURI="http://www.atkins.com/role/StockholdersEquityDetails">
        <link:definition>2413401 - Disclosure - Stockholders' Equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEvents" roleURI="http://www.atkins.com/role/SubsequentEvents">
        <link:definition>2121100 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEventsDetails" roleURI="http://www.atkins.com/role/SubsequentEventsDetails">
        <link:definition>2421401 - Disclosure - Subsequent Events (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPolicies" roleURI="http://www.atkins.com/role/SummaryOfSignificantAccountingPolicies">
        <link:definition>2104100 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesDetails" roleURI="http://www.atkins.com/role/SummaryOfSignificantAccountingPoliciesDetails">
        <link:definition>2404403 - Disclosure - Summary of Significant Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://www.atkins.com/role/SummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>2204201 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesTables" roleURI="http://www.atkins.com/role/SummaryOfSignificantAccountingPoliciesTables">
        <link:definition>2304302 - Disclosure - Summary of Significant Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedQuarterlyFinancialData" roleURI="http://www.atkins.com/role/UnauditedQuarterlyFinancialData">
        <link:definition>2120100 - Disclosure - Unaudited Quarterly Financial Data</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedQuarterlyFinancialDataDetails" roleURI="http://www.atkins.com/role/UnauditedQuarterlyFinancialDataDetails">
        <link:definition>2420402 - Disclosure - Unaudited Quarterly Financial Data (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="UnauditedQuarterlyFinancialDataTables" roleURI="http://www.atkins.com/role/UnauditedQuarterlyFinancialDataTables">
        <link:definition>2320301 - Disclosure - Unaudited Quarterly Financial Data (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="atk_AcquisitionofAtkinsMember" name="AcquisitionofAtkinsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_BarclaysBankPLCAndOtherPartiesMember" name="BarclaysBankPLCAndOtherPartiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_ChangeInStateTaxRate" name="ChangeInStateTaxRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_ChangeinAccountingPrincipleAbstract" name="ChangeinAccountingPrincipleAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_CommonSharesIssuedforPublicWarrantExercises" name="CommonSharesIssuedforPublicWarrantExercises" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_CommonSharesReceivedforeachPublicWarrantSurrendered" name="CommonSharesReceivedforeachPublicWarrantSurrendered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="atk_CommonSharesSurrenderedForEachPublicWarrantSurrendered" name="CommonSharesSurrenderedForEachPublicWarrantSurrendered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="atk_ComputerEquipmentAndSoftwareMember" name="ComputerEquipmentAndSoftwareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_ContingentConsiderationLiabilityFairValueDisclosure" name="ContingentConsiderationLiabilityFairValueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="atk_CustomerOneMember" name="CustomerOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_DilutedEarningsPerShareDenominatorAbstract" name="DilutedEarningsPerShareDenominatorAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_DilutedEarningsPerShareNumeratorAbstract" name="DilutedEarningsPerShareNumeratorAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_Distribution" name="Distribution" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_EarningsPerShareDenominatorAbstract" name="EarningsPerShareDenominatorAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_EarningsPerShareNumeratorAbstract" name="EarningsPerShareNumeratorAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_EffectiveIncomeTaxRateReconciliationContingentConsiderationPercent" name="EffectiveIncomeTaxRateReconciliationContingentConsiderationPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsPercent" name="EffectiveIncomeTaxRateReconciliationNondeductibleExpenseTransactionCostsPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_EffectiveIncomeTaxRateReconciliationWarrantLiabilities" name="EffectiveIncomeTaxRateReconciliationWarrantLiabilities" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_ExercisePriceRangefrom15.00to17.99Member" name="ExercisePriceRangefrom15.00to17.99Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_ExercisePriceRangefrom18.00to20.99Member" name="ExercisePriceRangefrom18.00to20.99Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_ExercisePriceRangefrom21.00to23.99Member" name="ExercisePriceRangefrom21.00to23.99Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_ExercisePriceRangefrom24.00to26.99MemberMember" name="ExercisePriceRangefrom24.00to26.99MemberMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_Exercisepricerangefrom12.00to14.99Member" name="Exercisepricerangefrom12.00to14.99Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_FormerMajorityStockholderAtkinsMember" name="FormerMajorityStockholderAtkinsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_FreightAccrualCurrent" name="FreightAccrualCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="atk_GainofsettlementofTRAliability" name="GainofsettlementofTRAliability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="atk_IncrementalCommonSharesAttributabletoDilutiveEffectofStockOptions" name="IncrementalCommonSharesAttributabletoDilutiveEffectofStockOptions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_InternationalExcludingNorthAmericaMember" name="InternationalExcludingNorthAmericaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_LineOfCreditCovenantComplianceCreditExtensionPercentOfAvailableCommitments" name="LineOfCreditCovenantComplianceCreditExtensionPercentOfAvailableCommitments" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_LineOfCreditCovenantComplianceNetLeverageRatio" name="LineOfCreditCovenantComplianceNetLeverageRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_LineOfCreditCovenantCompliancePostReductionNetLeverageRatio" name="LineOfCreditCovenantCompliancePostReductionNetLeverageRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_LineOfCreditFacilityInterestRateFloor" name="LineOfCreditFacilityInterestRateFloor" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_ManagementFeeMember" name="ManagementFeeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_NCPATKHoldingsInc.2010StockOptionPlanMember" name="NCPATKHoldingsInc.2010StockOptionPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_NumberofWarrantsExercisedinExchangeforCommonStock" name="NumberofWarrantsExercisedinExchangeforCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_ObsoleteInventoryReservationPercentFourToSixMonthsFromExpiration" name="ObsoleteInventoryReservationPercentFourToSixMonthsFromExpiration" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_ObsoleteInventoryReservationPercentWithinThreeMonthsFromExpiration" name="ObsoleteInventoryReservationPercentWithinThreeMonthsFromExpiration" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_OmnibusIncentivePlan2017Member" name="OmnibusIncentivePlan2017Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_OperatingLeasesNumberOfBuildingsLeased" name="OperatingLeasesNumberOfBuildingsLeased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_OtherOperatingExpenseMember" name="OtherOperatingExpenseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_OutOfPocketExpenseReimbursementMember" name="OutOfPocketExpenseReimbursementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_PaymentsofMergerRelatedDeferredStockIssuanceCosts" name="PaymentsofMergerRelatedDeferredStockIssuanceCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_PerformanceStockUnitsActivityAbstract" name="PerformanceStockUnitsActivityAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_PrivatePlacementWarrantsMember" name="PrivatePlacementWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_PublicWarrantsExercised" name="PublicWarrantsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="atk_PublicWarrantsMember" name="PublicWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_RelatedPartyTransactionContractualAgreementExpenseReimbursement" name="RelatedPartyTransactionContractualAgreementExpenseReimbursement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="atk_RelatedPartyTransactionContractualAgreementManagementFee" name="RelatedPartyTransactionContractualAgreementManagementFee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="atk_RelatedPartyTransactionContractualAgreementManagementFeePercentageofEBITDA" name="RelatedPartyTransactionContractualAgreementManagementFeePercentageofEBITDA" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="atk_WarrantLiabilityFairvalueDisclosure" name="WarrantLiabilityFairvalueDisclosure" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="atk_WebsiteDevelopmentMember" name="WebsiteDevelopmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
