According to the Dietary Supplement Health and Education Act, dietary supplements are defined as:
• products (other than tobacco) intended to supplement the diet that bears or contains one or more of the following dietary ingredients: a vitamin, mineral, amino acid, herb or other botanical
• a dietary substance for use to supplement the diet by increasing the total dietary intake
• a concentrate, metabolite, constituent, extract, or combination of any ingredient described above
A supplement is ingested in the form of a capsule, powder, or gel cap. It is not meant to replace conventional food. Supplement means,“in addition to”.
The best means to evaluate the claims of nutrition supplements is to possess a good background in nutrition and a familiarity with quality research conducted in sports nutrition or hire a qualified professional to guide you.