Biotin: Biotin deficiency symptoms include hair loss, premature wrinkles, and a scaly skin rash. A deficiency is uncommon, Toddler girl haircuts however, because biotin is formed by bacteria found naturally in the intestinal tract.
A protein in raw egg whites called avidin can bind to biotin in the intestines and prevent it from being absorbed. Consumption of several raw eggs a day might cause a biotin deficiency. Avidin is destroyed by high temperatures and eggs that are cooked do not inhibit absorption of the B vitamin.
A biotin deficiency is more likely to occur in pregnant women, alcoholics, the elderly, and athletes.
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Prolonged diarrhoea also might cause biotin deficiency. Some medications, such as antibiotics, destroy the important bacteria that produce the vitamin and a deficiency can develbp.
Foods from both plant and animal sources contain biotin. The richest sources are offal meats, milk, dried beans and peas, whole grain breads and cereals, and nuts.