Biotin (Vitamin B7)


Vitamin B7, or biotin, is one of the lesser known water-soluble B Vitamins.  B Complex products often include it, but not always. Biotin works as a cofactor to support the enzymatic activity involved in the production of fatty acids, amino acids and glucose.

Healthy adults need about 30 mcg of biotin each day.  Children vary in their needs from 5 – 25 mcg, depending on age.  People who might have a greater than normal need for biotin include alcoholics, patients who have had a partial gastrectomy or achlorhydria, burn patients, epileptics, elderly individuals, athletes and women who are pregnant or lactating.

Biotin does not seem to have any significant interactions with supplements and herbs, but is known to interact with these medications and drugs:

  • alcohol
  • carbamazepine
  • phenobarbital
  • phenytoin
  • primidone

If you use any of these medications, please discuss the need for biotin supplementation with your MD, ND or pharmacist.

Food sources of biotin include: brewer’s yeast, cooked eggs – especially the yolks, sardines, mushrooms and bananas.