Heart Health
Niacin (Vitamin B3)
Also known as: Nicotinic acid, Vitamin B3 (lipid), Niacin, Vitamin B3
Niacinamide is a water-soluble B vitamin essential for energy metabolism, DNA repair, and cellular signaling. It supports mental clarity and sustained energy production without the flushing effect associated with nicotinic acid.
Daily target & upper limit
16 mg / day · UL 35 mgNiacin (Vitamin B3) has an established daily reference intake. See best forms, label synonyms, upper-limit warnings, and top-scoring supplements:
Niacin (Vitamin B3) dosage reference →Primary uses
- HDL increase
- Triglycerides
- LDL reduction
- Lp(a)
- energy production
- mental clarity
- NAD+ synthesis
- cognitive function
How it works
- Increases HDL
- Lowers triglycerides and LDL
- May reduce Lp(a)
Dosage
- Typical range
- 500-2000mg daily (titrate up slowly)
- Timing
- With food, evening
- With food
- Yes (reduces flushing)
- Duration
- Ongoing, monitor liver
- Special populations
- Low HDL, high triglycerides, Lp(a)
Forms
- Immediate release
- Extended release
- No-flush (inositol hexanicotinate)
- niacinamide· 70/100
- nicotinamide· 70/100
Safety
Common side effects
- Flushing (common)
- GI upset
- Itching
- Glucose elevation
Contraindications
- Active liver disease
- Peptic ulcer
- Gout (relative)
Products containing Niacin (Vitamin B3)
Top-scoring supplements in our catalog that list Niacin (Vitamin B3) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Effective for lipids, causes flushing
Grade A: Multiple well-designed human trials support the main claims.
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Open the checkerMedical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.