BioStacks

Best Vitamin B3 for Heart

Top 10 products ranked

Last reviewed May 2026

Clinical dose: 25–500 mg

Why Vitamin B3 for Heart

Vitamin B3 plays a supporting role in heart. Available as nicotinic acid or nicotinamide (niacinamide); both support cellular energy and NAD+ synthesis, but only nicotinic acid improves lipid profiles by raising HDL cholesterol and lowering triglycerides — nicotinamide has zero effect on lipids. Nicotinic acid causes characteristic flushing (redness, warmth) at doses above 30–50 mg, while nicotinamide does not.

What dose to look for

Clinical studies typically use 25–500 mg of vitamin b3. Common in B-complex and standalone formulations; UL 35 mg applies to flushing form only. Products below this range may not deliver meaningful results.

What the research says

Vitamin B3 has strong clinical evidence for heart benefits. Decades of clinical trials for cholesterol management; nicotinic acid form has the strongest data Learn more

Clinical research on Niacin (Vitamin B3)

MODERATE — Well-established lipid effects but disappointing outcome trials · 1,500–2,000 mg/day (extended-release)

•Niacin is the most effective agent for raising HDL cholesterol (15–35% increase) and also lowers LDL (5–25%) and triglycerides (20–50%) at pharmacological doses.
•AIM-HIGH trial (2011, 3,414 patients) and HPS2-THRIVE trial (2014, 25,673 patients) found niacin added to statin therapy did NOT reduce cardiovascular events — despite improving lipid panels. PubMed
•These disappointing outcome trials led most cardiologists to abandon niacin as a cardiovascular therapy. The disconnect between lipid improvements and clinical outcomes remains poorly understood.
•Flushing is the primary side effect. Extended-release forms reduce flushing but carry hepatotoxicity risk at high doses. No-flush niacin (inositol hexanicotinate) has minimal evidence for lipid effects.

See full Heart research →