Nutrient to Know: Niacin

by in Nutrients to Know, February 25, 2011
Thai Chicken Satay
Get most of your daily dose of niacin from the chicken and peanut butter in this Chicken Satay.

Though plentiful in lots of foods, many folks turn to this B-vitamin in supplement form. Find out why that might not be such a good idea.

What is It?
Niacin (a.k.a. vitamin B3) is a water-soluble vitamin, which means that daily excess is lost in the urine. Because of this high turnover, it’s best to have a steady intake in niacin-rich foods.

Why is It Good for You?
Our bodies rely on this important vitamin to help produce energy from the carbs and fat we eat. It also plays a role in the workings of both the digestive and nervous systems.

Thankfully, you can find niacin in a wide variety of foods (see below). Not getting enough of this nutrient can lead to weakness, loss of appetite, and a rare combination of symptoms including diarrhea, dermatitis, dementia and possibly death known as Pellagra.

As usual, food sources of niacin are preferable because high doses from supplements have been shown to cause liver damage, skin rashes and digestive problems. Prescription-strength doses are sometimes given to help lower cholesterol, but those that do take it in such large amounts should work closely with their doctor or registered dietitian to make sure toxic effects are avoided.

Even low doses of niacin supplements can cause “niacin flush,” flushing along with possible itching and discomfort of the skin (usually the face). Just another good reason to watch your intake of the vitamin in any of the supplements you take.

Where Can I Find It?
The daily value for this vitamin is 20 milligrams per day. It can be found in lean meats, poultry, fish, wheat bran, legumes, mushrooms, whole grain cereals and peanuts.  Pass on the mega-dose supplements and stick to these easy-to-eat sources:

3 ounces roasted chicken breast = 11.4 milligrams (57 percent)
3 ounces cooked tuna = 9.0 milligrams (45 percent)
3 ounces cooked salmon = 6.8 milligrams (34 percent)
1 cup sliced crimini mushrooms = 2.7 milligrams (14 percent)
1 tablespoon peanut butter = 2.2 milligrams (11 percent)
1 slice whole wheat bread = 1.3 milligrams (7 percent)

Try the chicken satay, pictured above, for a hefty percentage of your daily niacin needs.

TELL US: What nutrients do you want to know more about?

Dana Angelo White, MS, RD, ATC, is a registered dietitian, certified athletic trainer and owner of Dana White Nutrition, Inc., which specializes in culinary and sports nutrition. See Dana’s full bio »

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Comments (1,983)

  1. [...] This post was mentioned on Twitter by FN's Healthy Eats and Dana White Nutrition, Jaye Alynn. Jaye Alynn said: Nutrient to Know: Niacin #healthy #food http://tiny.ly/rP9R [...]

  2. SAS says:

    Licithin – tell us more about it,foods, recipes…

  3. Mara says:

    Love the approach of getting your nutrition through food, not supplements. I'm a firm believer in food first, vitamins second!

  4. Ashley Moore says:

    I try to incorporate as many vegetables of varying colors into my dishes to get plenty of nutrition from my food the recipes at http://saborlatinorecipes.com follow these principles and are healthy–for vegetarians just take out the meat and you still have a filling dish!

  5. I'd love to know about which nutrients we need to get everyday and how often. It's pretty overwhelming keeping track of each additional one. meal planning tips to maintain a well balanced diet would be much appreciated. http://veggietestkitchen.com

  6. Mary says:

    I'd love to know about which foods contain the nutrients we need to get everyday. Also recipes for one, I have a hard time finding recipes that are smaller in portion size. Whatever happened to the Kelp supplement ? I use to be able to find it at discount & health food stores now it seems that it is only available on the internet.

  7. [...] healthy unsaturated fat), 2 grams of fiber and 7 grams of protein. They’re an excellent source of niacin and a good source of folate, magnesium, phosphorus and vitamin [...]

  8. [...] healthy unsaturated fat), 2 grams of fiber and 7 grams of protein. They’re an excellent source of niacin and a good source of folate, magnesium, phosphorus and vitamin [...]

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  10. [...] and the more antioxidants present. You can also find a variety of minerals like iron, copper, niacin, riboflavin, potassium and [...]

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