50?  That's all?  Luckily I'm 6'2", ~300 lbs.
Yesterday afternoon, to celebrate finals and the semester being done, my wife and I went out for sushi and dinner.  I ate 5 plates of 6 piece sushi, and that included dinner, and I was still wanting for more, just stopped because of money issues.  For one of my brother's birthdays I ate about 80, moaybe 90 pieces.  I was hurting afterwards (in the wallet area), but damn, there's this place nearby that has good sushi, not as good as back home in Hawai`i, but pretty good.
Mostly spicy tuna rolls, and salmon skin rolls.