Coming from you, I really hope you posted this for the people who didn't already take some sort of health class in school.
That's not always true. The Chicken Wings, Drumsticks, and Popcorn Chicken from KFC look like the ones from the commercials and the Chicken Sandwich from Burger King looks like the one I saw on TV.
Same goes for the Seasoned Fries from Checkers.
Nobody gives a damn about how their food looks. They just care if it's tasty or not. 'Sides most of the food in advertising have paint applied to them.
Most of those pictures don't even look that bad. The only difference in a lot of them is that the cheese on the sandwich is melted.
The only really nasty picture is Arbys Beef N Cheese, but it looks like the dude intentionally smushed the sandwich to make it look a lot worse.