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Created page with "{{obesity top}} 600px|right|Various cereal grains Cereal grains have been a double-edged sword for humanity, according to a paper published by Dr. Lorren Cordain, founder of the Paleo diet. ==Evolutionary benefits of grains== On the one hand, cereal grains have been a major source of sustenance for human civilizations for thousands of years, providing a reliable source of carbohydrates, protein, and other essential nutrients. Th..."