Niacin is also known as the vitamin B-3 and serves many purposes in the body. This vitamin is used to convert carbohydrates into sugar (which the body uses for energy), and keeps the nervous system, digestive system, skin, hair, and eyes healthy.
One of the greater benefits for the human body though, is Niacin's effect on cholesterol. Studies show that Niacin can raise good cholesterol (HDL) by 15 to 35 percent while lowering your bad cholesterol (LDL) and triglyceride levels to improve cardiovascular health.
When taken by itself, Niacin has been known to cause sever discomfort in the form of "flushing". However, several manufacturers now make a "Flush-Free" formula.