Natural Factors No-Flush Niacin contains inositol hexaniacinate, a form of niacin (vitamin B3) used in Europe for over 40 years. Inositol hexaniacinate is not associated with the side effects of harsher forms of niacin in high doses, such as flushing of the skin and upset stomach.

What is Niacin?
The body uses the water-soluble vitamin B3 in the process of releasing energy from carbohydrates. It is needed to form fat from carbohydrates and to process alcohol. The niacin form of vitamin B3 also regulates cholesterol, though niacinamide does not.

Where is it found?
The best food sources of vitamin B3 are peanuts, brewer’s yeast, fish, and meat. Some vitamin B3 is also found in whole grains.