I would say that eating a lot of junk food can definitely result in you gaining a lot of weight, however, some people do not tend to gain weight no matter how much of a certain food they eat and they feel because of that, they are fine and can eat as much as they want.

That is far from true and even if you do not gain a lot of weight when it comes to eating a lot of junk food, you have to remember how much damage you may be causing your body away from weight game such as clogged arteries which can result in heart attacks or even strokes and diabetes.