Dietary supplements provide nutrients to human body and are intended to have biological beneficial effect. Supplements that generally include vitamins, fiber, minerals, amino acids or fatty acids, among other substances. Mineral and vitamin supplements are among the most commonly used dietary supplement by adults and children. However, dietary supplement do not provide protection against diseases. Moreover, dietary supplements may be developed in many forms, which include drinks, powders, pills and energy bars. Dietary supplements are commonly found in pharmacies, supermarkets, health food shops and on the internet.
