Pellagra is a nutrient deficiency disease was thought to be a mental illness. Its signs are dermatitis, diarrhea, delirium, and ultimately death if untreated.
Pellagra is caused by a lack of niacin or tryptophan in the diet. It can also happen if the body doesn't absorb these nutrients. Dermatitis, dementia, and diarrhea are the most common pellagra symptoms. This is due to the fact that niacin deficiency is most noticeable in body parts with high cell turnover rates, such as your skin or gastrointestinal tract. Pellagra dermatitis typically results in a rash on the face, lips, feet, or hands.
Niacin, also known as nicotinic acid, is an organic compound and a type of vitamin B3, which is required by humans. Plants and animals can produce it from the amino acid tryptophan.
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