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Vitamin B7 or Biotin deficiency

Vitamin B7 or Biotin like any good member of the vitamin B complex works closely with other B’s, especially folic acid, pantothenic acid, and cobalamin. Main function of biotin is energy metabolism.

Biotin involved in the synthesis of fat, glycogen, and amino acids and enzyme reactions. It required for DNA replication and is important for healthy hair and nails.

Biotin for hair and nails

Many hair amd nail care products now contain biotin, claiming that it helps make healthy hair and prevent balding and graying. It’s true that you need biotin for healthy hair and that severe biotin deficiency causes hair loss.

The biotin in a shampoo or conditioner isn’t likely to do much for you, though.

Hair lost from biotin deficiency grows back when you fix the problem, but hair lost from natural balding is gone for good.

Biotin is made by the bacteria living in healthy large intestines. The wall of the large intestine has a specialized process for the uptake of biotin. This may be one reason why biotin deficiency is so rare.

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Causes of Biotin deficiency

Deficiency of biotin has been noted in prolonged intravenous feeding where biotin was omitted. The only other example of biotin deficiency is from long-term consumption of raw egg whites.

Biotin can bind to avadin, a protein found in egg whites. Cooking inactivates this bond, so cooked egg whites do not bind biotin.

Deficiency can result from a genetic lack of biotinidase, an enzyme that releases biotin from small proteins. This lack of biotinidase is a rare hereditary disorder.

Pregnant women may be at risk for borderline biotin deficiency. The developing fetus requires more biotin than is sometimes available.

Biotin deficiency symptoms include hair loss; scaly red rash around the eyes, nose, mouth, and genital area; depression; lethargy; hallucination; numbness and tingling of the extremities; and impaired glucose utilization and immune system function.

Food sources of Biotin

Biotin is found in many foods, but the best sources are beef liver and brewer’s yeast. Egg yolks, nuts, and whole grains are also good sources.

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