Vegetarianism has taken on a "political correctness" comparable to the respectability it had in the last century, when many social and scientific progressives advocated it. Today, crusaders extol meatless eating not only as healthful but also as a solution to world hunger and as a safeguard of "Mother Earth." The Physicians Committee for Responsible Medicine (PCRM) aggressively attacks the use of animal foods and has proposed its own food-groups model, which excludes all animal products.
