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Diseases reference index «Pellagra»

Pellagra is a disease that occurs when a person does not get enough niacin (one of the B complex vitamins) or tryptophan (an amino acid).

Causes

Pellagra is caused by having too little niacin or tryptophan in the diet. It can also occur if the body fails to absorb these nutrients. It may develop after gastrointestinal diseases or with alcoholism.

The disease is common in parts of the world where people have a lot of corn in their diet.

Symptoms

Symptoms of pellagra include:

  • Delusions
  • Diarrhea
  • Inflamed mucous membranes
  • Mental confusion
  • Scaly skin sores

Alternative Names

Vitamin B3 deficiency; Deficiency - niacin

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