Whether you want to admit it or not, your body goes through a pretty dramatic change as you transition from your 20s to your 30s. You find yourself getting tired a little earlier, things that seemed so exciting a few years ago now sound like a daunting task, and, most unfortunately, you have to start changing your diet. That wisdom you feel like you obtain when you hit 30 has to come with some sort of price, right? Here are the difference between eating in your 20s versus eating in your 30s.