Health outcomes for vegans are probably skewed heavily by the fact that the vegan sub-population consists of people who A) spend a lot of time obsessing over wh

Health outcomes for vegans are probably skewed heavily by the fact that the vegan sub-population consists of people who A) spend a lot of time obsessing over what they eat, and B) have the wherewithal to successfully pull-off a major dietary intervention (which is what veganism is, essentially).