B3, also known as niacin or nicotinic acid, is a water-soluble vitamin that is part of the B-vitamin complex. It plays a crucial role in converting food into energy by helping to transform carbohydrates, fats, and proteins into usable energy. Additionally, niacin is essential for maintaining healthy skin, nerves, and digestion. It assists in the production of certain hormones and cholesterol in the body, which can contribute to overall cardiovascular health.
Niacin can be found in a variety of foods, including meat, fish, poultry, whole grains, and legumes. The body can also synthesize niacin from the amino acid tryptophan, which can be found in high-protein foods. While most people get enough niacin through their diet, some individuals, particularly those with specific health conditions, may require supplements. However, it is essential to consult a healthcare professional before starting any supplementation, as excessive intake can lead to side effects such as skin flushing, itching, and gastrointestinal issues.