How much B1 is safe to take every day?
•
4 min read
According to the National Institutes of Health, the standard Recommended Dietary Allowance (RDA) for vitamin B1 (thiamine) for adult men is generally 1.2 mg and for adult women is 1.1 mg. This guide explores how much B1 is considered safe, addressing general intake guidelines and explaining when different levels might be appropriate for healthy individuals and those with specific needs.