Niacin, a B vitamin, has been prescribed for years to treat high cholesterol. Doctors often give it to patients along with statins to reduce the risk of heart disease. But a new study has noted ...

Since the liver processes vitamins, doses of 1,000-3,000 mg of niacin daily—used to treat high cholesterol—can cause liver damage and failure. This high dose may also lead to dangerously low ...

Niacinamide (also known as nicotinamide) is a specific form of vitamin B3 (niacin ... be safe to take up to 900–1500 mg daily ...