"The ADA takes a conservative stand, leaving out many well-documented health benefits attributable to reducing the consumption of animal products. Here are the three key sentences from the summary of their summary of the relevant scientific literature. One: Well-planned vegetarian diets are appropriate for all individuals during all stages of the life cycle, including pregnancy, lactation, infancy, childhood, and adolescence, and for athletes. TWO: Vegetarian diets tend to be lower in saturated fat and cholesterol, and have higher levels of dietary fiber, magnesium and potassium, vitamins C and E, folate, carotenoids, flavonoids, and other phytochemicals. Elsewhere the paper notes that vegetarians and vegans (including athletes) "meet and exceed requirements" for protein. And, to render the whole we-should-worry-about-getting-enough-protein-and-therefore-eat-meat idea even more useless, other data suggests that excess animal protein intake is linked with osteoporosis, kidney disease, calcium stones in the urinary tract, and some cancers."