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Niacin (Vitamin B3) Supplements

Niacin was the third of the B group vitamins to be discovered, hence its designation as vitamin B3. Historically it has also been called vitamin P.

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Niacin (Vitamin B3) Info

Niacin was the third of the B group vitamins to be discovered, hence its designation as vitamin B3. Historically it has also been called vitamin P. It comes in two different forms: niacinamide (or nicotinamide) and nicotinic acid. Both forms of supplement can provide the body’s nutritional requirements but they have different effects. Niacin influences the cardiovascular system, stimulating circulation and dilating the blood vessels, thus potentially helping to maintain healthy cholesterol levels.

The niacinamide form can initiate a sudden hot tingling flush in some individuals, which is temporary and harmless. It’s caused by the release of histamine, a vasodilator.

People who react with a ‘niacin flush’ may prefer the nicotinic acid form, which is non-flushing.

Niacin (Vitamin B3) Benefits

Niacin deficiency, known as pellagra, used to be called the disease of the 4 D’s: diarrhoea, dermatitis, dementia/depression, and (ultimately) death. Caused by poor dietary nutrition it is now rare in developed countries but still prevalent in countries where malnutrition is common.

Niacin deficiency may present as ulcer formation, dizziness, bad breath, headaches, nausea, irritability and depression.

As part of a vitamin B complex supplementation, niacin supports healthy brain and nervous tissue function and improves the stress response by supporting adrenal function.

As a vasodilator niacin can help ease cramping of the calf muscles and may help treat Raynaud’s disease. It can help regulate hypoglycaemia and may help relieve headaches and migraines.

Niacin (Vitamin B3) Side Effects

Niacinamide forms may cause temporary flushing.

Niacin should always be taken in conjunction with a B complex supplement, as all the B group vitamins need to be present in the correct ratio for optimal effect.

High doses should be avoided in the following conditions: diabetes, low blood pressure, gout, liver disease or ulcers.

Product Reviews

  • For pregnancy


    Very good for milk production during pregnancy - easier in tablet form than powder form for me



  • Great product


    Decided to take this product after being told that it's good for reducing colestral. Took all 50 capsules before having colestral blood test after fasting. Great news, overall colestral reduced from 7.0 ( Jun 2015) to 6.1 ( November 2015). The Ldl also reduced from 4.9 to 3.9. I'm also going through menopause and i noticed it helped with the hot flushes. I did suffer with itchy skin, but I can put up with that because the benefits far out way the negatives. Now I know this won't suit everyone, however, I was fortunate and definitely received the benefits. Have also been told that Flaxseed Oil is very good for Colestral. Now trying that and will have a blood test. Will definitely carry on with the Nacin as it's preferable to taking statins.



  • Great Product


    I was rather hesitant about buying this product after reading the only other review in where the person did not experience the flushing effect, but decided to give it a go as I have never taken B3 on its own. I can tell you it has a flushing effect! Within about 7 minutes of taking the Vita-Fit Niacin I was feeling the flushing effect which lasted about 15 - 20 minutes. I do wonder if one takes this product enough that you would possibly need more or a stronger dose to feel the flushing effect? I also experienced amazing energy levels during the day ( I even felt like running!) and had no problem sleeping that night. Highly recommend this product.



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