unhealthfulness: the quality of promoting poor health
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
pellagra: 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