Nutritional supplements, also known as nutritional agents, dietary supplements, etc. An auxiliary means of diet to supplement amino acids, trace elements, vitamins, minerals and so on needed by the human body. Nutritional supplements may consist of amino acids, polyunsaturated fatty acids, minerals and vitamins. Or only one or more vitamins, or one or more dietary components, including herbs or other plant components in addition to nutrients such as amino acids, vitamins, and minerals. Or a concentrate, extract or composition of the above components.

The market for nutritional supplements continues to grow as people become more aware of their health.