Katie Amato is a biological anthropologist studying interactions between diet, physiology and the gut microbiome in nonhuman primates and humans. Her evolutionary perspective on host-microbe interactions has recently led her into the world of fermented foods. Fermented food consumption is pervasive across human cultures, but little is understood about how and why this practice emerged across evolutionary time. Studying this behavior in nonhuman primates could provide additional insight, and yet few data on this topic exist. Amato will present data describing patterns of fermented food consumption in primates and link it to the existing fermentation literature to provide new insight into the evolution of fermented food consumption by humans.