12 Best Foods High in Niacin

Foods High in Niacin (Vitamin B3): The Everyday List

Niacin, also called vitamin B3, keeps your metabolism running, supports skin and nerve health, and helps the body convert food into usable energy. Your body can make a small amount from the amino acid tryptophan, but most of what you need comes from what’s on your plate.

Good news: niacin isn’t hard to get. Chicken, tuna, peanuts, and mushrooms all deliver meaningful amounts. Below are the foods that carry the most, along with how much you actually need in a day and a few practical notes on how the vitamin behaves.

What’s on This Page

• How much niacin you need (RDA table)
• The 12 highest-niacin foods
• What niacin actually does
• Signs of deficiency and who’s at risk
• Supplements and the flush
• FAQ

How Much Niacin You Need (RDA and UL)

The National Institutes of Health Office of Dietary Supplements sets the following daily targets for adults. Values are milligrams of niacin equivalents (NE), which count niacin and the amount your body converts from tryptophan.

The 12 Foods Highest in Niacin

Amounts below reflect USDA FoodData Central entries. Cooking method changes the total slightly, so treat the numbers as reliable estimates.

1. Chicken breast

A 3-ounce (85 g) portion of cooked, skinless chicken breast delivers around 11.4 mg of niacin, roughly 70 to 80 percent of an adult’s RDA. Lean, cheap, and easy to cook. Dark meat has about half as much.

2. Beef liver

Three ounces of cooked beef liver provides about 14.7 mg. That single serving covers a full day for most adults. Liver also delivers iron, vitamin A, choline, and B12. If you’re pregnant, keep liver to a small once-a-week portion because of its high preformed vitamin A.

3. Tuna

A cooked 3-ounce serving of yellowfin tuna contains around 18 mg. Canned light tuna is a lower-mercury pick that still supplies about 8 to 11 mg per serving.

4. Salmon

Three ounces of cooked salmon offers 8 to 9 mg. Farmed Atlantic salmon tends to run a little higher than wild. As a bonus, you also pick up omega-3 fats.

5. Turkey

A 3-ounce portion of turkey breast supplies around 6 mg of niacin, plus tryptophan the body converts into more. Turkey is one of the highest tryptophan sources on this list.

6. Pork tenderloin

Roasted pork tenderloin, 3 ounces, provides about 6 mg. It’s also rich in thiamin (vitamin B1), which supports carbohydrate metabolism.

7. Anchovies and sardines

Small, cheap, and often overlooked. A few canned anchovies deliver niacin, selenium, and calcium. Sardines run about 5 mg per 3-ounce can.

8. Peanuts and peanut butter

One of the best plant sources. Two tablespoons of peanut butter give about 4.3 mg. A 1-ounce handful of dry-roasted peanuts sits close to 4 mg.

9. Ground beef

Three ounces of 95 percent lean ground beef contains about 6 mg. Fattier grinds run lower because there’s less muscle tissue per bite. Beef also supplies iron, zinc, and B12.

10. Brown rice

A cup of cooked brown rice provides around 3 mg. Absorption from grains is lower than from meat, but brown rice still adds up as part of the day’s total.

11. Avocado

One medium avocado offers about 3.5 mg, along with fiber, potassium, and monounsaturated fat.

12. Mushrooms

White button and cremini mushrooms deliver roughly 2.5 mg per cooked cup. A useful staple for vegetarian and vegan eaters.

What Niacin Actually Does

Niacin is the raw material for two coenzymes, NAD and NADP, that show up in hundreds of chemical reactions. Real-world roles include:

• Energy metabolism. Every meal you convert to usable fuel runs through niacin-dependent enzymes.
• DNA repair. NAD helps cells fix routine damage.
• Skin and nerve health. Deficiency shows up first in the skin, gut, and brain.
• Cholesterol. Prescription-strength niacin can raise HDL and lower triglycerides, but this is a supervised medical use with side effects, not something to try on your own.

Signs of Deficiency

Severe niacin deficiency causes pellagra, historically remembered as the “four Ds”: diarrhea, dermatitis, dementia, and (untreated) death. It’s rare in developed countries thanks to food fortification but still shows up with alcohol use disorder, malabsorption, or highly restricted diets. Mild deficiency can cause fatigue, poor concentration, and skin irritation.

Niacin Supplements and the Flush

Ordinary multivitamins deliver niacin in modest amounts. Standalone niacin pills, especially the immediate-release nicotinic acid form, can cause a warm, red, itchy flush over the face and chest at doses above 30 to 50 mg. That’s harmless but uncomfortable.

High-dose niacin (500 mg and up) is a prescription-level therapy for lipid disorders. At those doses side effects include:

• Intense flushing and itching
• Liver enzyme elevation and, rarely, hepatotoxicity
• Increased blood glucose
• Gout flares
• Blurred vision

The NIH lists 35 mg per day as the tolerable upper intake level for niacin from supplements or fortified foods. Don’t exceed it without medical guidance.

FAQ

How much niacin do I need per day?

Adult men need 16 mg NE per day; adult women need 14 mg. Pregnancy raises the target to 18 mg. Most people who eat a mixed diet with any animal protein or peanuts hit these numbers easily.

Can vegans get enough niacin?

Yes. Peanuts, sunflower seeds, whole grains, mushrooms, legumes, and fortified cereals all contribute. Tryptophan-rich foods (soy, oats, seeds) also count toward the day’s niacin equivalents.

What causes the niacin flush?

Immediate-release nicotinic acid triggers a release of prostaglandins that dilate small blood vessels in the skin. The redness peaks in about 15 to 30 minutes and fades within an hour. It doesn’t happen from food, only from concentrated supplements.

Does cooking destroy niacin?

Niacin is relatively heat-stable. Small amounts can leach into cooking water, so soup broths and stews retain most of it. Grilling and roasting cause minimal loss.

Can I take niacin to raise HDL?

Only under medical supervision. Trials of high-dose niacin as an add-on to statin therapy have shown limited cardiovascular benefit and clear side effects. Ask your doctor before starting.

What’s a niacin equivalent?

The body converts about 60 mg of dietary tryptophan into 1 mg of niacin. One niacin equivalent (NE) is 1 mg of niacin or 60 mg of tryptophan. RDAs are expressed in NE for that reason.

Can I get too much niacin from food?

Practically no. Toxicity comes from supplements and prescription doses, not chicken and peanut butter. The 35 mg UL applies to supplements and fortified foods.

Related Reading

• Vitamin B Foods List
• Vitamin B12 Foods List
• Iron Foods List
• Omega-3 Foods List
• Foods Rich in Zinc