Niacin (Vitamin B3)

A water-soluble vitamin found in foods like meat, fish, and grains, essential for energy metabolism

Often taken withOmega-3, Berberine, Fiber
Niacin (Vitamin B3)

Evidence-backed benefits

How Niacin (Vitamin B3) can help, goal by goal, with the studies behind each score.

28XP

Raises HDL and lowers triglycerides and LDL, but has not reduced heart attacks and causes flushing.

Studies1234

How to read XP

Each score is for this supplement and that specific goal, not a general rating.

XP combines how reliable the research is with how much difference it usually makes. Higher means stronger evidence for that supplement and that goal.

Limited<15 XPModest15–27 XPModerate28–44 XPReliable45–69 XPHigh70+ XP

Dosage

What studies commonly use for Niacin (Vitamin B3), and how it is usually taken.

Usual dose

14–16 mg per day

14–16 mg/day (RDA) for nutritional support; 50–100 mg/day conservative supplemental

How to take it
  • With food
  • Start low
See study range

14–35 mg/day (nutritional/conservative); 500–2,000 mg/day (clinical dyslipidemia under doctor care; UL is 35 mg/day)

Your journey

Cholesterol & Lipids comes first (week 2 → week 8); Cholesterol & Lipids takes longest (week 2 → week 8). An estimate from the studies' timelines, not a promise: everyone responds differently.

Cholesterol & Lipids
Week 2 → Week 8

From the first noticeable effect to roughly full strength. Colour follows the XP tier of each benefit.

Make it a habit

These gains come from steady use, not a single dose. Keep Niacin (Vitamin B3) in your routine for about week 8 before you judge it.

Safety

What to know before you take Niacin (Vitamin B3).

Safety rating

Check first

Serious risks are possible.

  • Flushing and itchingVery common above 30 mg of nicotinic acid. Harmless but intense.
  • Liver damage at high dosesMainly sustained-release niacin above 1,000 mg a day.

Check with a doctor first if you have diabetes, gout, liver disease or stomach ulcers.

General information, not medical advice. If you are pregnant, take medication or have a health condition, check with a doctor or pharmacist first.

Common pairings

Supplements and habits often combined with Niacin (Vitamin B3).

Omega-3

Both studied for blood fats

Berberine

Both studied for cholesterol

Fiber

Fiber is commonly used alongside for cholesterol

Where to buy

Brands we looked at for Niacin (Vitamin B3), with our quality score for each.

Nutricost

Niacin (Vitamin B3)

Quality score4/5

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