Can you get enough vitamin b3 niacin from food and dietary sources ?

Most niacin, or vitamin b3 is found in many foods, and your body is able to manufacture its own niacin from tryptophan, an amino acid in protein, so most people are not vitamin b3 deficient, unless they have an extremely poor diet.

However, those who abuse alcohol or are vegetarian or vegan may want to take a niacin supplement—alcohol inhibits vitamin b3 absorption, and diets that lack protein are probably niacin deficient.












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