Is 5000 mcg of biotin too much? Understanding the Dosage and Risks
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4 min read
The adequate intake (AI) of biotin for adults is just 30 micrograms (mcg) per day, yet supplements commonly contain 5,000 mcg or more. Therefore, the question, **is 5000 mcg of biotin too much?**, is not about toxicity but potential lab test interference and whether such a high dose is necessary.