Gender

I'm curious.. so, this is my first pregnancy and my fiancé already has a daughter. He is really rooting for a boy. I wonder- does the kinds of foods you eat determine the gender of the baby? I'm only asking because I've been told that if you crave a lot of fruits and veggies it's determined to be a girl and if you crave meats and proteins it's determined to be a boy. Lately I can't stand the sight, smell or taste of any kind of meat. So I think he's going to be disappointed.