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Information about Vitamin B3 (Niacin)

We Have to Know about the Vitamin B3 (Niacin) 

  • Niacin Deficiency is more prevalent among malnourished population surviving mainly on maize diets. It has been reported in India in the Telangana area where people are eating jowar (Sorghum vulgare), these people consume very little of milk or other foods of animal origin.


  • Foods rich in niacin liver, kidney meat, poultry, fish
  • Legumes and groundnut.
  • Milk is a poor source of niacin but its proteins are rich in Tryptophan (one of the important Amino Acid) which is converted in the body into niacin.
  • About 60 mg of tryptophan is required to result in 1 mg of niacin.


  • It is also essential for the normal functioning of the skin, intestinal and nervous systems
  • Niacin or nicotinic acid is essential for the metabolism of carbohydrate, fat, and protein.


  • Niacin deficiency results in pellagra
  • disease are characterized by

(1).  Diarrhea (loose Motions),

(2).  Dermatitis (Skin Inflammation) :

  • The dermatitis is bilaterally symmetrical and is found only on those surfaces of the body exposed to sunlight, such as the back of the hands, lower legs, face, and neck

(3). Dementia (slow deterioration of brain function) :

  • Mental changes may also occur which include depression, irritability, and delirium.
  •   In addition

(1).  Glossitis (Inflammation of Tongue)

(2).  Stomatitis (inflammation Oral Mucosa)


  • A good mixed diet containing milk or meat is best for prevention and treatment
  • Avoidance of total dependence on maize or sorghum is an important preventive measure
Vitamin B3 (Niacin)
                 Vitamin B3 (Niacin)