I mean you’ll probably get runny shits from eating it due to the excess fiber, but I’m fairly certain the ancient nomadic tribes who first started eating wheat like that probably had significantly more fiber in their diets than modern man and eating it like that would probably be far less of a shock to their system than us puny fiber weaklings.
To clarify by modern man, I meant a human living in the year 2026 who eats a “modern diet” of (at least partially) processed foods with significantly lower fiber intake than that of a preindustrial man. (Obviously this would be excluding currently living humans who are living in tribal conditions, such as those living in North Sentinel Island.)
I was not attempting to imply that those living at that time were of a different species than homosapiens. To be honest if they were a different species I’m not sure my comment would have made sense as different homo species would likely have subtle differences in their digestive tracks than homosapiens.