I mean, I mainly avoid really heavy like breads and fried foods and sugar to a certain point like I had to do a couple of shirtless scenes both of which got cut for the movie.
Compare this to what's available in American convenience stores - they're limited to fried foods sitting under heat lamps or foods loaded with trans fat, sugar, preservatives and unhealthy additives.
They have their own take on the hamburger wherein they'll use lettuce, and raw cucumbers, and a type of fry sauce - that's called a shalpuborgari, or a shop burger, and that's been around for ages.