Safety
Nicotinic Acid vs Niacinamide: Flushing, Hepatotoxicity, and Why the Form Matters
"Niacin" on a supplement label can mean two very different molecules. Nicotinic acid (also called niacin) and niacinamide (nicotinamide) both convert to NAD in the body and both prevent the deficiency disease pellagra. They diverge sharp…