Is it okay for a human to eat grass?
                                
                                
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                                    3 min read                                
                            
                                According to a study published in the *Proceedings of the National Academy of Sciences*, early human ancestors did consume some grasses, but modern humans have since evolved away from this dietary pattern. So, is it okay for a human to eat grass? The simple answer is a definitive no, due to our physiological inability to digest it effectively.