This Vitamin May Influence Your Blood Flow and Blood Vessels—Here’s What Science Says

for adult women, with different requirements during pregnancy and breastfeeding.

These amounts refer to nutritional requirements and should not be confused with the much larger pharmacological doses historically used to treat abnormal lipid levels.

Foods That Provide Vitamin B3

Niacin is available from many common foods, making deficiency uncommon among people eating an adequate and varied diet.

Dietary sources can include:

Chicken and turkey

Tuna and salmon

Beef and other meats

Peanuts

Sunflower seeds

Whole and enriched grains

Fortified cereals

Legumes

Some mushrooms

The body can also produce some niacin from the amino acid tryptophan, which is obtained from dietary