Is 2000 mg of Niacinamide Too Much for You?
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3 min read
According to the National Institutes of Health, the tolerable upper intake level (UL) for niacinamide from supplements is 900 mg per day for adults, based on data regarding potential gastrointestinal effects. A daily oral dose of 2000 mg of niacinamide, therefore, significantly exceeds this safety threshold and is considered too much for most individuals.