Zone Perfect Energy Bars Nutrition Bars?

Nutrition Bars? - zone perfect energy bars

I am a 15yr girl. I run about 4 times a week 2-3 miles each time. I was kind enough to experiment, nutrition bars, and I want to stay healthy. Not so for energy, but also for nutrients. Nutrition bars are something that would be good to eat frequently (like maybe4, 5 times per week), what are the best for your body? Also, I have tried the Zone Perfect bars and know very well, and I've also read that burn fat to help get in the zone? And what does this mean? Thanks a million!