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500 mg 100 capsules, Item# 00372
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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
Serving Size 1 capsule
Servings Per Container 100
Niacin (vitamin B3)
Other ingredients: gelatin, vegetable stearate.
This product contains NO milk, egg, fish, peanuts, crustacean shellfish (lobster, crab, shrimp), soybeans, tree nuts, wheat, yeast, gluten, corn, or rice. Contains NO sugar, and no artificial sweeteners, flavors, colors, or preservatives.
Temporary flushing, itching, rash, or gastric disturbances may occur. Liver function testing is recommended when niacin is taken in excess of 500 mg daily. Those with gout or liver diseases should avoid taking high doses of niacin.
Niacinamide is another B3 vitamin that does not cause flushing.
(based on 5 reviews)
of respondents would recommend this to a friend.
Reviewed by 5 customers
Displaying reviews 1-5
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One of the Best
from Alpharetta, GA
About Me Regular User
Comments about Life Extension Vitamin B3 Niacin, 500 mg 100 capsules:
I previously used Niacin for a long time (originally to quit smoking), but weaned off it for about 10 years. I saw my BP start to creep up with age to the 140/85-ish range. I re-introduced Niacin and built up to 1000mg/day (500mg with lunch and dinner). That's really the only change I made and I'm back in the 110/70 range. I take no prescribed medications.I do get a flush now and then, but it's no big deal, especially for how well this stuff works. It is a staple for me now, I wouldn't be without it.
Bottom Line Yes, I would recommend this to a friend
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(1 of 1 customers found this review helpful)
I rather enjoy the flush!
By Janet, a LEF advocate
from York PA
About Me First Time User, Health Conscious
See all my reviews
Some people don't like the flush you get with niacin, but I enjoy it...I know it's working!
from St. Louis
About Me Health Conscious
Have used this product for a long time and it continues to fulfill my needs.
I will continue to buy this product.
from Casselberry, FL 32707
About Me Health Conscious, Medical Professional
The product is effective and does what I expected.
Great product for reducing cholestrol
By Janet, LMT
from Long Island, NY
I take this product in the morning with a fruit smoothie. The flushing would bother me in the beginning but no longer is an issue.
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