is niacin a mineral or vitamin
Niacin (Vitamin B3). Niacin is one of eight B vitamins and is part of two co-enzymes (abbreviated as NAD and NADP). Within both co-enzymes, niacin has a role in many biological functions within the body. NAD helps convert carbohydrates, protein, fat and alcohol into energy and NADP is necessary for the synthesis of fatty acids.