Which vitamin deficiency is caused by eating large quantities of raw eggs: (A) Vitamin H, (B) Vitamin C, (C) Vitamin B5, (D) Vitamin B6
Answer is A. Biotin (Vitamin B7) is also called vitamin H. Raw eggs contain avidin which binds with biotin and inhibits it. When egg is boiled / cooked avidin is denatured and binding to biotin is reduced.