A team of U.S. Department of Agriculture (USDA) scientists and their collaborators have established a strong link between honey bee health and the effects of diet on bacteria that live in the guts of these important insect pollinators. In a study published in the November issue of Molecular Ecology, the team fed caged honey bees one of four diets: fresh pollen, aged pollen, fresh supplements, and aged supplements. After seven days, the team euthanized and dissected the bees and used next-generation sequencing methods to identify the bacteria communities that had colonized the bees’ digestive tract.