Noun: mal rosso
- A disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments
"mal rosso was common in populations with corn-based diets lacking niacin";
- pellagra, mal de la rosa, maidism, mayidism, Saint Ignatius' itch
Type of: avitaminosis, hypovitaminosis