Proteins from animal products are meant to be the main acid-generating challenge in the human diet. Meats such as chicken, pork roast, and Arby’s roast beef sandwiches are therefore a major source of acid in the average American diet. Acids yielded by meats, such as uric acid and sulfuric acid (the same as in your car’s battery and acid rain), need to be buffered by the body. The fermented product of bovine mammary glands (cheese!) is another highly acidic group of foods, particularly reduced-fat, high-protein cheeses. Any food derived from animal sources, in short, generates an acid
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