What about this vegan NFL player? https://redditblog.com/2016/06/24/300-pound-vegan-david-cart...
Bit more about myself since I think it's applicable: I'm no world class athlete, but I went vegetarian and started weight lifting a while back. Benched like 120 starting out. Now I'm vegan and can bench 200+ lbs, gained that muscle without eating animals.
Sure, there's some random ingredient that studies show only meat has and may help a little, but plenty of vegan athletes are starting to pop up and show there isn't some special thing in dead animals.
The common theme among vegan athletes is that recovery times improve substantially.
True but highly misleading. Even a vegan will have some amount of creatine because this molecule is produced by the liver and kidney.
Also the effects of creatine aren't that well studied: http://www.webmd.com/men/creatine
I don't know why I joined this discussion. I am neither vegan nor an athlete.