Niacin is also known as Vitamin B3 or nicotinic acid. It helps in the conversion of carbohydrates into glucose that serves as fuel for energy. It also helps the body in metabolizing fats and proteins. Niacin also helps in the production of hormones necessary for the body to function properly. It is also effective in improving the circulation in the body. It lowers cholesterol, triglycerides and blood sugar level. It also helps in the treatment of coronary artery disease. It also helps in regulating the blood sugar level. Niacin also helps prevent the Pellagra disease, which causes digestive problems, diarrhea, dermatitis, hyper-pigmentation, amnesia, dementia, delirium, and even death. Niacin also helps prevent Alzheimer’s disease, diabetes, and is also effective in treating acne.