Nowadays a small percentage of people are allergic to certain nuts or legumes. This allergy seems to be on the rise, or perhaps was underreported in previous years. Let's say that from a paleontological perspective some early humans developed an intolerance to certain nuts and legumes. This intolerance would be similar to the nut allergies seen in some people today. How would this affect "history". By 'history' I mean the recorded obserations of humanity, from sumerian clay tablets to usenet.
Some tangents: Would all human populations develop this food allergy? How would this affect agriculture? Would there be protein deficiency issues in certain human populations? Would certain species of nuts or legumes change or disappear due to lack of human cultivation or consumption? Would humans develop an instinctual fear of nuts and legumes? Would the inability of certain persons to digest these foods change the course of wars or nation building?
Some tangents: Would all human populations develop this food allergy? How would this affect agriculture? Would there be protein deficiency issues in certain human populations? Would certain species of nuts or legumes change or disappear due to lack of human cultivation or consumption? Would humans develop an instinctual fear of nuts and legumes? Would the inability of certain persons to digest these foods change the course of wars or nation building?
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