Definition of Dietary Supplement:
A dietary supplement is a product that contains one or more dietary ingredients, or their constituents (considered the bioactive substances in dietary supplements), is intended to supplement the diet, and is intended to be taken by mouth.
Examples of dietary supplements include micronutrients (vitamins, minerals), macronutrients (protein, amino acids, fatty acids), herbs/botanicals (St. John’s wort, ginkgo, echinacea), phytochemicals (lycopene, isoflavones, curcumin), zoochemicals (creatine, conjugated linoleic acid, chondroitin), and others (probiotics, glucosamine, melatonin).
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