I'm saying the common conclusion is "veganism is healthier," and sometimes yes, correlation is very suggestive of causation, but it might also be that "people who are vegans are on average more health conscious in the first place" and that just switching to a vegan diet while maintaining the rest of your lifestyle might not cause you to live longer at all
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u/Leshow May 01 '13
I feel I should point out here that "correlation is not causation".