<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->
<!-- Created: Tue Apr 07 16:45:01 UTC 2026 -->
<linkbase xmlns="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" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#IndividualsOnly" roleURI="http://xbrl.sec.gov/ecd/role/IndividualsOnly"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all"/>
  <definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>
    <loc xlink:type="locator" xlink:label="ivfh_GarySchubertMember" xlink:href="ivfh-20260406.xsd#ivfh_GarySchubertMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllIndividualsMember" xlink:to="ivfh_GarySchubertMember" order="2" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ivfh_RobertWBillBennettMember" xlink:href="ivfh-20260406.xsd#ivfh_RobertWBillBennettMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllIndividualsMember" xlink:to="ivfh_RobertWBillBennettMember" order="4" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="ivfh_SamKlepfishMember" xlink:href="ivfh-20260406.xsd#ivfh_SamKlepfishMember"/>
<!-- [WMV6][pQqewi7Y9/Dty6HqoOPpwsXoBDy4/cae9UK4oLl3uS02P4fn0STMuQ+O6OsGGq9sGQVuHq/UrT/+3NDl4pCTH7Vzs14AtpEPVlYMme/ElEUFVm9nsEvz6+o0J+5NGL2hy62swyAVx3sCXiEpPEqIFGWCWnsTwFNYK4pUjlNgEY/IR3qUJV4vF2w9B07VIQ+wZLr8g0s1qUyBP00nFoCNQpQUdR6AJh6KOBuWEY2+Ov/aQRQB0NU2l9tAxvp3Q2LsgmVxk7f9vRScDMdXKDjc67OVVVb/QnJrkA2QoKnKxNXA4pKD7IMC7CDb93wc/ko=] CSR-->
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_AllIndividualsMember" xlink:to="ivfh_SamKlepfishMember" order="6" xbrldt:closed="true"/>
  </definitionLink>
</linkbase>
