Vitamin B3 Niacin

Vitamin B3, or Niacin, is an essential vitamin required for processing fat in the body, and regulating blood sugar levels. A deficiency of niacin leads to pellagra, a condition characterized by diarrhea, dermatitis, dementia, inflammation of the mouth, amnesia, delirium, and if left untreated, death. Even a slight deficiency of niacin can lead to irritability, poor concentration, anxiety, fatigue, restlessness, apathy, and depression.

Niacin, Vitamin B3, is a water-soluble vitamin that is well regulated by the body, thus overdose is rare, and only occurs when niacin is taken in the form of supplements. An overdose of niacin is seen in the form of skin rashes (flush), dry skin, various digestive maladies. A long-term overdose can lead to liver damage, elevated blood sugar levels and type II diabetes, as well as increased risk of birth defects.

High niacin vegan foods include mushrooms, green peas, sunflower seeds, and avocados. The current DV for Niacin (Vitamin B3) is 20mg.


Information does not replace the advice of your physician or other health care provider. Before undertaking any course of treatment, the reader must seek the advice of their physician or other health care provider.