In May 2009, researchers in Japan identified a gene, SOX21, that appears to be responsible for hair loss in humans[http://uk.reuters.com/article/2009/05/25/science-us-hair-loss-idUKTRE54O4D020090525] and a researcher in India found the missing link between androgenic hormone and hair loss. Androgenic alopecia is said to be a counterproductive outcome of the anabolic effect of androgens [http://www.ncbi.nlm.nih.gov/pubmed/19477078].
Alopecia can be treated with adequate intake of food containing vitamin B7.The primary role of biotin is in the metabolism of fats, proteins and carbohydrates. Biotin functions as a critical component of
several enzymes (where it functions as a coenzyme) involved in energy metabolism (such as pyruvate carboxylase). Biotin helps in the synthesis of fatty acids, in energy metabolism, and in the synthesis of amino acids and glucose. Biotin is also involved in making glucose, some amino acids and in energy production. Vitamin H plays a special role in enabling the body to use blood sugar (glucose), a major source of energy for body fluids. Biotin supplements may improve thin, splitting, or brittle toe and fingernails as well as hair health. Biotin has also been used to combat alopecia (partial or complete loss of hair) in both children and adults. Biotin is typically included in most multi-vitamin supplements.
Sources of biotin (vitamin H, vitamin B7): Biotin is found in many foods, but generally in lower amounts than other water-soluble vitamins. Natural sources of biotin include egg yolk, liver, kidney, cooked oats, soybeans, unpolished rice, brewer's yeast, nuts and milk. Egg whites contain a chemical that binds to biotin very strongly and prevents it being absorbed into the blood from the intestines. Organ meats such as liver and kidney are the best dietary sources of biotin. Some other foods, such as wheat, contain considerable amounts of biotin but with very low bio-availability. Other meats, vegetables, and fruits usually contain low amounts of biotin. The bacteria that normally colonize the colon (large intestine) are capable of making their own biotin. Biotin is widely distributed in food stuffs, but the amounts are small relative to other vitamins. Biotin is available within multivitamins and B-vitamin complexes, and as individual supplements. Biotin content of food is reduced by cooking and preserving.
Alopecia can be treated with adequate intake of food containing vitamin B7.The primary role of biotin is in the metabolism of fats, proteins and carbohydrates. Biotin functions as a critical component of
several enzymes (where it functions as a coenzyme) involved in energy metabolism (such as pyruvate carboxylase). Biotin helps in the synthesis of fatty acids, in energy metabolism, and in the synthesis of amino acids and glucose. Biotin is also involved in making glucose, some amino acids and in energy production. Vitamin H plays a special role in enabling the body to use blood sugar (glucose), a major source of energy for body fluids. Biotin supplements may improve thin, splitting, or brittle toe and fingernails as well as hair health. Biotin has also been used to combat alopecia (partial or complete loss of hair) in both children and adults. Biotin is typically included in most multi-vitamin supplements.
Sources of biotin (vitamin H, vitamin B7): Biotin is found in many foods, but generally in lower amounts than other water-soluble vitamins. Natural sources of biotin include egg yolk, liver, kidney, cooked oats, soybeans, unpolished rice, brewer's yeast, nuts and milk. Egg whites contain a chemical that binds to biotin very strongly and prevents it being absorbed into the blood from the intestines. Organ meats such as liver and kidney are the best dietary sources of biotin. Some other foods, such as wheat, contain considerable amounts of biotin but with very low bio-availability. Other meats, vegetables, and fruits usually contain low amounts of biotin. The bacteria that normally colonize the colon (large intestine) are capable of making their own biotin. Biotin is widely distributed in food stuffs, but the amounts are small relative to other vitamins. Biotin is available within multivitamins and B-vitamin complexes, and as individual supplements. Biotin content of food is reduced by cooking and preserving.