most mass produced modern food is full of shit that affects human development. all food does, but only relatively recently have we started fucking with it beyond just breeding the best animals and best crops. not to mention, everything is wrapped in plastic which has its own known effects on the human body, and probably more that we don't know. then you can go on with pesticides, birth control, car exhaust, etc and again probably more that we don't know. things have changed very quickly in a pretty short period of time, in terms of both technology and culture.
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