The Yale study compared 49 people: meat-eating athletes (mostly Yale students), vegetarian athletes, and sedentary vegetarians. (I couldn’t find the primary source in English, though.) I did find a famous series of experiments at Yale, published more than a century ago, on “the influence of flesh eating on endurance,” which I discuss in my video The First Studies on Vegetarian Athletes. Their competitors were having to eat crow with their beef.” Then, a Belgian researcher put it to the test in 1904 and found that those eating more plant-based reportedly lifted a weight 80 percent more times. A week later, he won the most prestigious hill-climbing race in England….Other members of the club also turned in remarkable performances. “In 1896, the aptly named James Parsley led the Vegetarian Cycling Club to easy victory over two regular clubs.
Meat-eating athletes are put to the test against vegetarian athletes and even sedentary plant-eaters in feats of endurance.