<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A property indicating that a food component must be taken into the body preformed and in sufficient quantity to meet the body's needs for growth, reproduction and/or maintenance of health.</n0:def-definition><n0:def-source>CRCH</n0:def-source></n0:ComplexDefinition>