- Biotin is an essential water-soluble B vitamin. The name biotin is taken from the Greek word bios meaning "life." Without biotin, certain enzymes do not work properly and various complications can occur involving the skin, intestinal tract, and nervous system. Metabolic problems including very low blood sugars between meals, high blood ammonia, or acidic blood (acidosis) can occur. Death is theoretically possible, although no clear cases have been reported. Recent studies suggest that biotin is also necessary for processes on the genetic level in cells (DNA replication and gene expression).
- Biotin deficiency is extremely rare. This is because daily biotin requirements are relatively small, biotin is found in many foods, and the body is able to recycle much of the biotin it has already used. Significant toxicity has not been reported in the available literature with biotin intake.
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Biotin (vitamin H)
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Natural Standard developed the above evidence-based information based on a thorough systematic review of the available scientific articles. For comprehensive information about alternative and complementary therapies on the professional level, go to . Selected references are listed below.
- Adhisivam B, Mahto D, Mahadevan S. et al. Biotin responsive limb weakness. Indian Pediatr. 2007 Mar;44(3):228-30.
View Abstract - Albarracin C, Fuqua B, Geohas J, et al. Combination of chromium and biotin improves coronary risk factors in hypercholesterolemic type 2 diabetes mellitus: a placebo-controlled, double-blind randomized clinical trial. J Cardiometab Syndr 2007 Spring;2(2):91-7.
View Abstract - Baumgartner ER, Suormala T. Multiple carboxylase deficiency: inherited and acquired disorders of biotin metabolism. Int J Vitam Nutr Res 1997;67(5):377-384.
View Abstract - Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline. Washington, DC: National Academy Press; 1998:374-389.
- Friebel D, von der Hagen M, Baumgartner ER, et al. The first case of 3-methylcrotonyl-CoA carboxylase (MCC) deficiency responsive to biotin. Neuropediatrics 2006 Apr;37(2):72-8.
View Abstract - Geohas J, Daly A, Juturu V, et al. Chromium picolinate and biotin combination reduces atherogenic index of plasma in patients with type 2 diabetes mellitus: a placebo-controlled, double-blinded, randomized clinical trial. Am J Med Sci 2007 Mar;333(3):145-53.
View Abstract - Mock DM, Mock NI, Nelson RP, et al. Disturbances in biotin metabolism in children undergoing long-term anticonvulsant therapy. J Pediatr Gastroenterol Nutr 1998;26(3):245-250.
View Abstract - Mock DM, Stadler DD, Stratton SL, et al. Biotin status assessed longitudinally in pregnant women. J Nutr 1997;127(5):710-716.
View Abstract - Neiva RF, Al-Shammari K, Nociti FH Jr, et al. Effects of vitamin-B complex supplementation on periodontal wound healing. J Periodontol 2005 Jul;76(7):1084-91.
View Abstract - Revilla-Monsalve C, Zendejas-Ruiz I, Islas-Andrade S, et al. Biotin supplementation reduces plasma triacylglycerol and VLDL in type 2 diabetic patients and in nondiabetic subjects with hypertriglyceridemia. Biomed Pharmacother 2006 May;60(4):182-5.
View Abstract - Seymons K, De Moor A, De Raeve H, et al. Dermatologic signs of biotin deficiency leading to the diagnosis of multiple carboxylase deficiency. Pediatr Dermatol 2004;21(3):231-235.
View Abstract - Singer GM, Geohas J. The effect of chromium picolinate and biotin supplementation on glycemic control in poorly controlled patients with type 2 diabetes mellitus: a placebo-controlled, double-blinded, randomized trial.
View Abstract - Stewart S, Prince M, Bassendine M, et al. A randomized trial of antioxidant therapy alone or with corticosteroids in acute alcoholic hepatitis. J Hepatol 2007 Aug;47(2):277-83.
View Abstract - Strom CM, Levine EM. Chronic vaginal candidiasis responsive to biotin therapy in a carrier of biotinidase deficiency. Obstet Gynecol 1998;92(4 Pt 2):644-646.
View Abstract - van den BH. Bioavailability of biotin. Eur J Clin Nutr 1997;51 Suppl 1:S60-S61.
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