Food security and obesity: Can passerine foraging behavior inform explanations for human weight gain?

Abstract

Commonly used measures of human food insecurity differ categorically from measures determining food security in other species. In addition, human foraging behaviors may have arisen in a divergent evolutionary context from nonhuman foraging. Hence, a theoretical framework based on food insecurity and fat storage in nonhumans may not be appropriate for explaining associations between human food insecurity and obesity.