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Can a Person Take Too Much Biotin?

by
author image Rachel Nall
Rachel Nall began writing in 2003. She is a former managing editor for custom health publications, including physician journals. She has written for The Associated Press and "Jezebel," "Charleston," "Chatter" and "Reach" magazines. Nall is currently pursuing her Bachelor of Science in Nursing at the University of Tennessee.
Can a Person Take Too Much Biotin?
Biotin supplements are rarely associated with harmful side effects. Photo Credit Thinkstock/Comstock/Getty Images

Biotin is a member of the B vitamin family, which means your body does not produce it, so you must obtain it from your daily diet. Although it is only found in small amounts of certain foods, your body does not require large amounts. However, a biotin deficiency can cause various symptoms. While you should always consult with your physician before taking biotin or any other supplement, few side effects have been reported resulting from biotin supplementation -- even with large dosages.

Upper Level Dosages

The recommended dosage for biotin for therapeutic effects can be anywhere from 30 to 100 micrograms per day for adults and teenagers, according to MayoClinic.com; however, no adverse side effects have been reported for taking biotin dosages of up to 10 mg per day. For this reason, the Institute of Medicine did not identify a tolerable upper level for taking biotin. However, if you experience side effects you think may be related to taking biotin, report them to your physician.

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Excess

Because biotin is a water-soluble vitamin, your body does not store the excess that builds up in your system. This means if you take more biotin than you need via supplementation, your body will likely release the extra biotin in your urine.

Deficiency

You may wish to take more biotin than the recommended dosages if you experience symptoms related to a biotin deficiency. Biotin deficiency symptoms include hair loss and developing a red rash around your eyes, nose, mouth and/or genitals. This rash is characteristic of a biotin deficiency, along with an usual distribution of fat in the face. You also may experience unexplained fatigue, hallucinations and numbness in your arms and legs.

Biotinidase Deficiency

A genetic disorder called biotinidase deficiency may necessitate taking larger dosages of biotin than what is typically recommended. This condition affects the absorption of biotin in your intestines and keeps your body from using the biotin found in dietary protein sources like eggs, pork, salmon and liver. In this instance, high doses of biotin -- anywhere from 40 to 100 mg of biotin per day -- are recommended, according to the Linus Pauling Institute.

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