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10 Best Niacin Supplements for 2019

If you’re looking for the best niacin supplements to buy this year, then you’ve come to the right place

You can also get more info by jumping to our Niacin Supplements Guide.

Top 10 Niacin Supplements

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#1Nature's Bounty Niacin Flush Free 500 mg-sNature’s Bounty Niacin Flush FreeMore Info
#2Doctor's Best Real Niacin-sDoctor’s Best Real NiacinMore Info
#3Life Extension Vitamin B3 Niacin-sLife Extension Vitamin B3 NiacinMore Info
#4Nature's Way Niacinamide-sNature’s Way NiacinamideMore Info
#5Sundown Naturals Niacin-sSundown Naturals NiacinMore Info
#6Now Foods Niacin-sNow Foods NiacinMore Info
#7Rugby Niacin-sRugby NiacinMore Info
#8Solaray Niacin Capsules-sSolaray Niacin CapsulesMore Info
#9Source Naturals Niacin Vitamin B-3-sSource Naturals Niacin Vitamin B-3More Info
#10Solgar Niacin Vitamin B3-sSolgar Niacin Vitamin B3More Info

Niacin Supplements Guide

Niacin is very important for the human body, and a lack of this nutrient can have negative effects on overall health. The two main chemical forms of vitamin B3 are niacinamide and nicotinic acid.

What Are Niacin Supplements?

Niacin is another name for vitamin B3, and it’s a nutrient that your body needs to stay healthy. Supplements that contain this nutrient offer a variety of benefits, and they’re great for undergoing a niacin flush.

Vitamin B3 can be found in green vegetables, eggs, milk, meat and fish, and nicotinic acid can also be obtained from a supplement. Niacin is used as fuel for the body, and each of the major B vitamins help with the absorption of carbohydrates, which fuel daily activity.

Benefits of Niacin Supplements

A deficiency in niacin can result in headaches, diarrhea, depression, fatigue and memory loss, and it can even cause irritating skin problems. Most people who live in Western countries don’t have a niacin deficiency, but since some people are deficient in vitamin B3, supplementation can help.


When obtained through natural food sources, vitamin B3 doesn’t usually cause any unwanted side effects, but in the form of a supplement, it comes with the risk of side effects. A few potential effects of consuming niacin as a supplement are liver toxicity, vomiting and nausea.

It’s important to know that some side effects are much more common than others, and the odds of experiencing the worst effects increase as the dosage is raised. A very common effect caused by these supplements is called the niacin flush, and it’s the result of dilated blood vessels.

When this happens, flushing can occur in the neck, chest and face, and it’s almost always accompanied by burning and tingling sensations. Some other common side effects are nausea, stomach irritation and vomiting, and these issues are much more common when taking slow-release vitamin B3 supplements.

One of the dangerous effects of taking too much niacin is liver damage, and this problem is much more likely to occur among people who supplement over a long period of time. In some cases, doses between three to nine grams of niacin per day have caused impaired blood sugar control, and this is another potential side effects of supplementation.

A rare side effect is blurred vision, and since niacin can increase the total amount of uric acid in the body, it has the potential to cause gout. Although the flushing effects can occur at low doses, most unwanted side effects are caused by taking large doses of niacin.

Always speak with a medical professional or doctor before taking any supplements. Always read the product label for instructions and directions.

Taking Niacin Supplements

Niacin is an essential nutrient, and everyone needs it. However, most people don’t get enough vitamin B3 from their daily diet, and by supplementing with niacin, it’s possible to eliminate the negative effects that are caused by a deficiency.

The amount of niacin in most supplements is much higher than what would be found in food, and therapeutic doses are measured in grams. Most vitamin B3 supplements come in a bottle, and the active ingredient is delivered with a capsule or tablet.

People who have trouble swallowing should consider capsules because they’re easier to wash down with a glass of water. Before supplementing with niacin, it’s important to know the recommended dosages. Most supplements will say how much to take per day, and a single serving might consist of a single capsule. For the best results, it’s a good idea to follow the specific instructions on the product label, but the general guidelines can also be helpful.

What to Look for In a Good Niacin Supplement

Top supplements that contain niacin deliver the active ingredient in several different ways. Some products deliver the main ingredient slowly, and others deliver is quickly and promote the rapid absorption of vitamin B3. The way that the active ingredient is delivered can have a major impact on the side effects produced by the supplement.

Many well-known supplements use an immediate-release delivery method, which is great for boosting HDL levels in the blood. This form of niacin is quickly absorbed by the body, and it’s also quickly excreted. After consuming immediate-release niacin, it takes between 30 to 60 minutes to reach peak blood levels, and the half-life of the formula is about one hour.

When using immediate-release niacin supplements, it’s best to consume them after meals, and most products will recommend taking several doses per day. Another option is a flush-free supplement, which doesn’t release free niacin into the body.

The major issue with flush-free formulas is that they have extremely poor bioavailability within the body, which renders them almost useless.

After a dose of this product is consumed, the capsule releases the active ingredient slowly, and it can take up to 12 hours for the full dose to be released.

When shopping for niacin supplements, it’s important to consider the delivery method and find out what the capsules are made from. Some of the best products deliver the active ingredient using vegetarian capsules, and since they don’t contain yeast, sodium, sugar, wheat, gluten or dairy, they’re ideal for people who have food allergies.

Before purchasing a specific product, it’s a good idea to avoid flush-free formulas because the bioavailability is extremely low. It’s very important to read the product label and find out if it’s an immediate-release or time-release formula.

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