Life Extension, Vitamin B3 Niacin, 500 mg, 100 Capsules
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- For Longer Life
- Promotes Cardiovascular Health
- Dietary Supplement
Vitamin B3 Niacin
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.
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. In its coenzyme forms, niacin is crucial to energy transfer reactions, particularly the metabolism of glucose, fat, and alcohol. Niacin's beneficial effects on blood lipids is well-documented.
Read the entire label and follow the directions carefully prior to use.
Take one (1) capsule daily with meals, or as recommended by a healthcare practitioner.
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.
Caution: 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.
- Keep out of the reach of children.
- Do not exceed recommended dose.
- 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.
|Serving Size: 1 Capsule|
|Amount Per Capsule||% Daily Value|
|Niacin (vitamin B3)||500 mg||2500%|
iHerb Customer Reviews
I have been using this product for a year after switching from GNC's niacin (B3). GNC's product was good, but very expensive. I no longer experience the 'Niacin Flush' that people are complaining about. Before taking any megadose supplement/vitamin, you should CONSULT YOUR DOCTOR. Taking large doses of vitamin B3 (niacin) requires you to have good liver function. If your liver function is poor, you could permanently damage it. My doctor specifically told me to STAY AWAY FROM THE ''NO-FLUSH'' NIACINAMIDE. I hope this review helps some people to realize that taking megadoses of niacin should be taken with an informed consent, and the green light from your doctor. . . . . You can find other products I use on my Page! I use only products that have Scientifically Proven benefits.
I take niacin at 500mg/day for the last two months. It has helped me to increase HDL, nad lower LDL and triglycerides. Also, niacin is the only supplement that has proved to decrease the thicknes of atheromatic plaque. My 14 yo son takes the same amount to help his acme. After one month, results are really impressive. We both flash, but it is not that bad. As a matter of fact, we enjoy it.
It is hard
Posted by 4979708457747705135 on May 22, 2016
The flash was too hard. I tried once.
Posted by 4953209479533855644 on Apr 23, 2016
The flushing is verry nice, and relaxing, also good for sleep.
Vitamin b3 Niacin LIFE EXTENSION
Posted by Reviewer2170662 on Sep 05, 2015
THISPRODUCT CAUSES SERIOUS ALLERGIE TO ME AND TO MY SISTER. If I take Niacin from NOW FOOD I have no problem-
Posted by crisinKR on Jun 30, 2015
I was expecting a flush but the first time I took it I thought I was gonna have a heart attack (and I'm 27!) It was one of the most painful experiences I've ever had with medicines. But I kept at it and now i still get a bit itchy and very red but my body is handling it a lot better. It seems to help my skin too.