Of course they do.
Some do, like in the game Dead or Alive.
Not really. First off, it's a video game. Secondly, the only people who have issue with it are obese feminists. Which are all the way on the other side of the body scale. They insist on redrawing characters with a muffin top.
You're telling me Laura Croft with a weight issue would be able to dodge dungeon traps, climb ledges, and fight evil mystical creatures? Or someone like Jade taking part in a world fighting Moral Kombat tournament is going to look like Rosie O'donnell?
Yes, there are a lot of people out there with good physiques. They eat to live, not live to eat.