Niacin (vitamin B3) is a very important nutrient for your body. It has many health benefits, along with several side effects if you take large doses.

Start with low doses: Begin with a small dose of niacin and gradually increase it over time. This allows your body to build a tolerance to the flush.

Niacin Flush: What Happens to Skin High doses of supplemental niacin in the form of nicotinic acid bring about a reaction that causes the expansion of your capillaries.

While niacin works all over the body, it is known for being particularly helpful for your skin. So what foods are rich in B3?

Niacin flush is when the skin flushes following taking high doses of niacin. It is harmless but may cause some discomfort.

Niacin may raise heart disease risk, a study finds. Experts share what you need to know about vitamin B3 and its potential to trigger inflammation.

Niacin supplements are also increasingly popular as evidence suggests they have anti-ageing benefits, says Hazen. Plus, it wasn’t until recently that doctors stopped prescribing high-dose niacin ...

Vitamin B complex includes eight water-soluble vitamins. It helps to enhance brain function, heart health, and promote energy production. Explore benefits, risks, and dosage guidelines.

Higher doses of niacin can help lower cholesterol, but long-term treatment with niacin — particularly with extended-release forms — may damage the liver.