Niacin (substance)

Niacin, also known as Vitamin B3 or nicotinic acid, is an essential nutrient that plays a vital role in the body's metabolic processes. It is one of the B vitamins that are necessary for maintaining good health.

Overview

Niacin is a water-soluble vitamin that is not stored in the body, which means it must be regularly consumed as part of the diet. It is found in a variety of foods, including meat, fish, poultry, whole grains, and legumes. Niacin can also be synthesized in the body from the amino acid tryptophan.

Functions

Niacin plays a crucial role in energy production and supports the function of the nervous system. It is involved in the conversion of food into energy by aiding enzymes. Niacin is also important for the production of certain hormones in the adrenal glands and helps remove harmful chemicals from the liver.

Health Benefits

Niacin has been used to treat high cholesterol levels and reduce the risk of cardiovascular disease. It can also improve brain function, promote healthy skin, and reduce symptoms of arthritis and diabetes.

Deficiency and Toxicity

A deficiency in niacin can lead to pellagra, a disease characterized by diarrhea, dermatitis, dementia, and death. On the other hand, excessive intake of niacin can lead to niacin flush, a condition characterized by burning, tingling sensation in the face and chest, and red or flushed skin.

See Also

• Vitamin B3
• Pellagra
• Cholesterol
• Cardiovascular disease