Vitamin B3: from an ally against cholesterol to a risk factor for heart attacks. Excess breakdown products of niacin or vitamin B3 may be related to a higher risk of mortality from cardiovascular disease, specifically heart attack and stroke.
Niacin is an essential micronutrient naturally present in many foods, such as eggs, lean meats and legumes; The body can also produce it through tryptophan, an amino acid that is released when digesting proteins.