The diet of indigenous peoples studied within the last 100-150 years typically includes few grains, beans, nuts, seeds, and tubers, with a greater emphasis on medicinal plant use.

“what we find is kind of the type of research that's informed things like the Paleo diet autoimmune Paleo they don't need a lot of grains it's kind of hard to find them they're rare seasonal they don't eat a lot of beans they even nuts occasionally depending where they are but not a ton they might eat some seeds but not a whole lot and they might dig up tubers but one of the striking things we realize about them is if you look at these images people there use of plants varies but it's a lot of medicinal use of plants rather than functional use of plants”