Isotopic analysis of the remains of people living 9,000-6,500 years ago in the Andes Mountains of modern-day Peru indicates they were not hunter-gatherers as previously believed but instead would be better categorized as “gatherer-hunters.” That’s because “hunter-gatherers” implies a diet consisting primarily of hunted meat supplemented by a diet of gathered plants, whereas these early Peruvians existed on a diet that was 80% plant-based.
“Conventional wisdom holds that early human economies focused on hunting — an idea that has led to a number of high-protein dietary fads such as the Paleo diet,” explained University of Wyoming Assistant Professor of Archaeology Randy Haas, who led the research effort. “Our analysis shows that the diets were composed of 80 percent plant matter and 20 percent meat.”