The recommended daily intake of biotin varies by age and life stage. According to the National Institutes of Health, adults should consume:
- 30 micrograms (mcg) per day for adults 19+ years
- 30 mcg for pregnant women
- 35 mcg for breastfeeding women
While higher doses (2,000-5,000 mcg) are commonly found in supplements, research hasn’t conclusively proven that mega-doses provide additional benefits for healthy individuals. It’s important to note that excess biotin is generally considered safe as it’s water-soluble and excess amounts are excreted through urine. However, always consult with a healthcare provider before starting any supplement regimen.
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Last Updated: July 31, 2025
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