I nearly fell out of my chair when I saw this article show up on T-nation. A meat-eating body builder going mostly vegan for two months? That's unheard of. Props to John Berardi for trying to gain muscle mass on a plant based diet.
I'll say that I think it's entirely possible to be strong and vegetarian. Heck, I'm even living proof of that. There's no meat in my diet, and I can still strap on 70 lbs and bang out some weighted pull ups and dips. On the flip side, I'll never have a body builder look since I'll never consume enough protein to put on that much muscle mass. But I'm ok with that. I'd rather focus on being able to hold an iron cross than looking like Arnold.