The association between heat exposure and hospitalization for undernutrition in Brazil during 2000-2015: A nationwide case-crossover study.

Our study suggests that global warming might directly increase undernutrition morbidity, by a route other than by threatening food security. This short-term effect is increasingly important with global warming. Global strategies addressing the syndemic of climate change and undernutrition should focus not only on food systems, but also on the prevention of heat exposure.