Niacin (nutrient)

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 eight B vitamins and is water-soluble, meaning it is not stored in the body and must be regularly replenished through diet or supplementation.

Overview

Niacin is involved in numerous bodily functions, including the conversion of food into energy, the repair of DNA, and the production of certain hormones in the adrenal glands. It is also important for skin health and maintaining the nervous system.

Sources of Niacin

Niacin can be found in a variety of foods. The richest sources are meats, especially liver, chicken, and turkey. Other good sources include fish, whole grains, legumes, and nuts. Some fruits and vegetables, such as avocados, mushrooms, and potatoes, also contain niacin.

Health Benefits

Niacin has several health benefits. It can help lower cholesterol levels and reduce the risk of cardiovascular disease. It may also help control blood sugar levels, making it beneficial for people with diabetes. Some research suggests that niacin may also have neuroprotective effects, potentially helping to prevent conditions like Alzheimer's disease and other forms of dementia.

Deficiency and Overdose

A deficiency in niacin can lead to a condition known as pellagra, which is characterized by diarrhea, dermatitis, dementia, and, in severe cases, death. Symptoms of a niacin overdose can include skin flushing, nausea, and liver damage.

See Also

• Vitamin B3
• Nutrition
• Metabolism
• Pellagra

Vitamins A Vitamin A B Biotin Vitamin B1 (see Thiamin) Vitamin B12 Vitamin B6 C Calcium Choline Chromium Copper Vitamin C D Vitamin D

E Energy Drinks Exercise and Athletic Performance Vitamin E F Fluoride Folate I Iodine Iron K Vitamin K

M Magnesium Multivitamin/mineral Supplements N Niacin P Pantothenic Acid Phosphorus Potassium Primary Mitochondrial Disorders R Riboflavin

S Selenium T Thiamin V Vitamin A Vitamin B1 (see Thiamin) Vitamin B12 Vitamin B6 Vitamin C Vitamin D Vitamin E Vitamin K Z Zinc