Will eating junk food wear out my metabolism?

I am 5'9 and 113 pounds. I eat a lot and most of the time I'm eating junk food. Is it possible that when I get older I will have worn out my metabolism and then get fat?

Your metabolism WILL wear out when you become older, regardless of what you eat now. So live it up while you can But it would probably be a better idea to start eating healthy soon, so you get used to it when you have to.

Mostly junk food ?...you know that's bad for you regardless....eat healthy or you won't stay "toosexy".