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Vitamin dietary ingredients are organic compounds required as a nutrient in tiny amounts by an organism. An organic chemical compound (or related set of compounds) is called a vitamin when it cannot be synthesized in sufficient quantities by an organism and must be obtained from the diet. Thirteen vitamins are presently universally recognized and all are available from Spectrum in a variety of forms.
Citrus Bioflavonoid Blend, 13 Percent, Powder