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Niacin

Niacin is a water-soluble vitamin that participates in more than 50 metabolic functions, all of which are important in the release of energy from carbohydrates. In addition, Niacin has been found to work better than many traditional drugs to lower serum cholesterol.

 

What if I don't get enough?

Niacin deficiency, known as pellagra, was common 100 years ago but today is extremely rare.

 

And what if I get too much?

High doses of niacin can cause flushing, itching, vomiting, abdominal cramps, diarrhea, weakness, lightheadedness, headache, fainting, sweating, high blood sugar, high uric acid, heart rhythm disturbances, and jaundice.  

Niacin is found in the following foods:

  • Meat

  • Poultry

  • Fish

  • Enriched grain products

 

Caution

Niacin is often prescribed for reducing serum cholesterol. Common doses are over 100 times the recommended daily dietary amount. At such a level, niacin is acting as a drug and not a vitamin. Persons using this much niacin should be monitored by a physician.

Smoking can impair niacin absorption and thus smokers may require more than non-smokers.