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 of pellagra include:
- Inflamed mucus membranes
- Mental confusion
- Scaly skin sores
Vitamin B3 deficiency; Deficiency - niacin
So YT, Simon RP. Deficiency diseases of the nervous system. In: Daroff RB, Fenichel GM, Jankovic J, Mazziotta JC, eds.Bradley’s Neurology in Clinical Practice
Kumar N. Neurologic presentation of nutritional deficiencies.Neurol Clin
Update Date 10/14/2012
Updated by: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.