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Biotin, or B7, is a B vitamin that is essential to many body functions. It is present in foods such as eggs, fish, meat, nuts, and seeds, but its supplementation is often prescribed for hair loss. (1)
The supplement is considered safe to take with no major reported side effects including weight gain. In fact, some reports suggest biotin’s role in losing weight! (2)
Biotin and Weight
Biotin is important for many physiological functions as it forms an essential part of many enzymes involved in the metabolism of carbohydrates. (3) This boost in metabolism means carbohydrate is used more effectively to produce energy and is less likely to be stored in the form of fat.
Studies have also found biotin to have an influential role in decreasing triglyceride levels and total cholesterol in the liver and blood. (3)(4)
Biotin and Its Role in Health
Biotin deficiency often manifests in the form of weak and brittle nails, loss of hair, and poor skin health. (1) For this reason, biotin supplementation is often prescribed for hair loss and weakening nails.
Some studies have also reported biotin to be useful for hair and nail changes caused by biotin deficiency as a result of an underlying pathological condition such as inherited deficiencies, excessive alcohol consumption, smoking, or long-term antibiotic use. (5)
Biotin: Recommended Intake
The recommended daily intakes set by the Food and Nutrition Board are 25–30 mcg for adults, 30 mcg for pregnant women, and 35 mcg for lactating women. (1)
What Should I Avoid When Taking Biotin?
Biotin can interact with certain medications. Consult your doctor to identify the medications you may be taking that can interfere with biotin supplementation.
Practical Takeaways
- Biotin is B complex vitamin that is often used to treat hair loss or weak, brittle nails.
- Biotin forms a part of enzymes that are involved in the metabolism of carbohydrates. It prevents the creation of fat and can also reduce the total triglycerides and cholesterol in the liver and blood.
- Biotin does not cause weight gain but, in fact, aids in weight loss by boosting metabolism.
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