Biotin, sometimes referred to as vitamin H despite the fact that it is not a true vitamin per se, works as a co-factor with other B-complex vitamins to break down and metabolize fats, and to synthesize fatty acids. Biotin can also minimize symptoms of zinc deficiency.
The best food sources of biotin include liver, Brewer's yeast, nuts, milk, and egg yolk. Raw eggs eaten in large amounts can deplete biotin absorption, however, due to their avidin content. (Avidin is inactivated by cooking.) Excessive alcohol and use of antibiotics can also impair biotin absorption and destroy biotin stores.
Symptoms of biotin deficiency include appetite loss, depression, fatigue, hair loss (especially among teenagers), muscle pain, and skin problems.
