Biotin has long been used as a supplement to enhance skin and coat health.
Biotin was discovered at the turn of the last century in research on “egg white disease”: the consumption of large amounts of raw egg whites induced skin lesions, hair loss and neuromuscular disorders.
Biotin is necessary for cell growth, the production of fatty acids, and the metabolism of fats and amino acids. It plays a role in the citric acid cycle, which is the process by which biochemical energy is generated during aerobic respiration. Biotin not only assists in various metabolic reactions, but also helps to transfer carbon dioxide. It may also be helpful in maintaining a steady blood sugar level.
Mammalian tissues are unable to synthesise biotin and as a result, biotin requirements are provided by intestinal microbe production and dietary sources. Oilseeds, egg yolks, alfalfa meal, liver and yeast are the most important natural sources of biotin.