Disease from vitamin deficiency: everyone returned to tuck into confection of grape

• A disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin)
• Disease caused by niacin and protein deficiency
• Disease from fermented grape in which everyone's thrown up
• Vegetable eating wholly brought about King George's disease
• Characterized by gastrointestinal disturbances and erythema and nervous or mental disorders

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
chronic disease caused by dietary deficiency and characterized by skin eruptions, 1811, a hybrid formed from Latin pellis "skin" (see film (n.)) + Greek agra "a catching, seizure," related to agrein "to take, seize." But OED suggests it might be originally ...

Wiktionary Word definitions in Wiktionary
n. (context pathology English) A disease, with skin lesions and mental confusion, primarily caused by a niacin deficiency.

Wikipedia Word definitions in Wikipedia
Pellagra is a vitamin deficiency disease most frequently caused by a chronic lack of niacin (vitamin B or synonym: vitamin PP (from: Pellagra Preventing factor)) in the diet. It can be caused by decreased intake of niacin or tryptophan , and possibly by ...

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ Another form of mental disorder, pellagra , was associated clinically with diarrhoea and dermatitis. ▪ Colitis, which is histologically similar to ulcerative colitis, has also been described in association with pellagra . ▪ Eat ...