10 Foods That Provide Niacin (Vitamin B3)

Niacin, also called vitamin B3, is found naturally in many foods and is added to some enriched or fortified products. The NIH Office of Dietary Supplements explains that poultry, beef, pork, fish, some nuts and legumes, grains, and fortified breads or cereals can contribute niacin. The body can also make some niacin from tryptophan, an amino acid found in protein foods, so the full dietary contribution is not captured by a simple list.

10 common sources

1. Chicken: Poultry is a source of niacin.

2. Turkey: It provides niacin and tryptophan, which the body can use to make niacin.

3. Beef: Several cuts contain niacin.

4. Pork: Pork contributes niacin as part of a varied diet.

5. Salmon: Fish can be a substantial source.

6. Tuna: Canned or cooked forms provide niacin; compare labels and preparation preferences.

7. Peanuts: A plant-based source that can be eaten as a snack or spread, if safe for you.

8. Sunflower seeds: Add to cereal, yogurt, or salads.

9. Lentils and other legumes: Use in soups, stews, and grain dishes.

10. Enriched breads and cereals: Niacin may be added during enrichment or fortification; check the ingredient and nutrition labels.

Brown rice, potatoes, bulgur, and other grains can also contribute. Exact amounts vary by serving, variety, preparation, and fortification. Some naturally occurring niacin in grains is less available for absorption than added niacin, so a detailed nutrient calculation is not always straightforward.

Food is not the same as a high-dose supplement

Niacin in food is not equivalent to a large-dose capsule or prescription product. High supplemental amounts can cause flushing and other side effects, and pharmacologic doses can affect the liver, blood sugar, and blood pressure. Do not take niacin to change cholesterol or treat fatigue based on a food article. Most people in the United States get enough niacin from foods; a clinician should evaluate concerns about deficiency or supplement use.

Put the list in context

No single item is mandatory. Choose combinations that fit your preferences, budget, culture, allergies, and overall dietary needs. If you have a medical condition or a clinician-directed eating plan, ask how these general suggestions fit rather than making a major change based on a nutrient list.

Sources and further reading

• Niacin: Fact Sheet for Consumers — NIH ODS.

Health disclaimer

This article is for general education only. Its information and suggestions are not medical advice, diagnosis, or treatment and may not be right for everyone. Ask a qualified health professional for advice that fits your health, medications, and needs before changing your diet, exercise, supplement use, or care.