Biotin

Biotin, also known as vitamin B7 or vitamin H, is a water-soluble vitamin that plays a role in metabolism, including the conversion of food into energy. It occurs naturally in foods like eggs, nuts, and whole grains, and can also be produced by gut bacteria. Biotin is often manufactured synthetically for use in supplements and fortified foods.

Biotin is added to foods primarily as a nutrient, to increase the vitamin content of products like protein powders, meal replacements, and milkshakes. It is also found in some fortified beverages and vitamin supplements. Its inclusion helps consumers meet their daily recommended intake of this essential vitamin.

Biotin is not a food additive and is not assigned an E-number. It is an essential nutrient, and the UK government provides dietary recommendations for its intake. The European Food Safety Authority (EFSA) has evaluated biotin and concluded that it contributes to normal energy-yielding metabolism, normal functioning of the nervous system, and the maintenance of normal skin and hair. While generally considered safe, very high doses from supplements can interfere with certain laboratory test results, a fact noted by regulatory bodies.