The idea that vegetarians have superior physical endurance was reinforced in 1974 when a group of male vegetarian runners called "the vegetarian seven" set a 24-hour distance record. This inspired an undergraduate dietetics major to seek me out as a coach for a group of seven female vegetarian long-distance runners. I asked her what their motivations were something every coach needs to know. She said they wanted to demonstrate the superiority of a vegetarian diet. I asked who would be representing the meat-eaters. She said that, because the event would not be a standard competition, no one would represent the meat-eaters. I revealed to her that three of the male runners had not been vegetarians until training for the record-setting event but merely had pledged to become so. I also told her: that genetic factors, principally the capacity for oxygen uptake, determine distance-running ability; that whether a diet is vegetarian is inconsequential to distance-running ability; and that a 24-hour run is a perilous way to try proving vegetarian superiority. "What will you do," I inquired, " if seven meat-eating, beer-drinking atheists who are world-class runners decide to beat your record?" She got the point. And although she became an accomplished amateur runner, she didn't use her success to propagandize for vegetarianism.