Definition: generic descriptor of tocol and tocotrienol derivatives possessing the biologic activity of a-tocopherol; contained in various oils (wheat germ, cotton seed, palm, rice) and whole grain cereals where it constitutes the nonsaponifiable fraction; also contained in animal tissue (liver, pancreas, heart) and lettuce; deficiency produces resorption or abortion in female rats and sterility in males.
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Examples: glitazone, GI cocktail, etc.