How to sign: 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 alco
Similiar / Same: pellagra, Alpine scurvy, mal de la rosa, mal rosso, mayidism, Saint Ignatius' itch
Categories: avitaminosis, hypovitaminosis