dietary supplement

A dietary supplement is a foodstuff, administrated to supplement the normal diet, which is a concentrated source of vitamins or minerals, or other substances with a nutritional or physiological effect, marketed in a form that allows the dosage including capsules, tablets, and other similar forms, sachets of powder, ampoules of liquid, drop-dispensing bottles, and other similar forms of liquids and powders designed to be eaten in small, measured amounts.