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Vitamin B3 Niacin 500mg 100 capsules Life Extension

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SKU: 70155
Regular price $6.00 USD
Regular price -33% $9.00 USD Sale price $6.00 USD
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Many B vitamins are used in the body individually or in combination with enzymes to help release energy from carbohydrates, fat, and protein. Vitamin B coenzymes are crucial to the metabolic pathways that generate the energy needed by every cell in the body. Because they are codependent in their metabolic activities, a deficiency of one B vitamin can affect optimal functioning of organ systems throughout the body.170

Niacin is the only B vitamin that can be synthesized in the liver from the amino acid tryptophan — on average, 1 mg of niacin can be synthesized from the ingestion of 60 mg of tryptophan.198-200 In its coenzyme forms, niacin is crucial to energy transfer reactions, particularly the metabolism of glucose, fat, and alcohol.201, 202 Niacin’s beneficial effects on blood lipids is well-documented.203-215

Suggested Use:
Take one (1) capsule daily with meals, or as recommended by a healthcare practitioner.


Serving Size: 1 capsule

Amount Per Serving
Niacin ... 500mg
(vitamin B3)

Other ingredients: gelatin, vegetable stearate.


Temporary flushing, itching, rash, gastric disturbances, lightheadedness, or unexpected drop in blood pressure may occur. Liver function testing is recommended when niacin is taken in excess of 500 mg daily.


  • Do not purchase if outer seal is broken or damaged.
  • When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.