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Vitamin B3 (Niacin)
A water-soluble vitamin involved in energy metabolism and DNA repair. Exists as niacin and niacinamide forms.
Mineral or nutrientUpdated Feb 16, 2026
Health score+2.0
-5Good5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Food and supplement guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Risks
High dose supplementation may cause skin flushing, liver toxicity, gastrointestinal upset
Benefits
Supports energy metabolism, helps maintain healthy skin and nervous system, involved in DNA repair
References
Waters containing Vitamin B3 (Niacin)
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