Gluten Free, Non-GMO, LE Certified. Promotes Cardiovascular Health. Dietary Supplement. Niacin, also known as Vitamin B3, is a well-studied nutrient that helps maintain already-healthy cholesterol levels. It also supports the healthy metabolism of glucose, fat, and alcohol, and promotes cellular energy production. This makes Vitamin B3 Niacin a popular choice for supporting cardiovascular health and overall well-being.