Niacin is an essential B vitamin that plays many roles, including promoting cardiovascular, brain, digestive and skin health. Niacin is involved in numerous reactions inside of cells that convert food into cellular energy.
Niacin is also involved in the activity of enzymes that transport and break down fats, proteins, carbohydrates, and other molecules formed from food. Niacin is particularly helpful in promoting healthy cholesterol levels. A normal function of niacin is to help remove fats (triglycerides) from tissues and the bloodstream.