Who do you think is going to last longer on the field: the guy who sucked down a bag of Cheetos 15 minutes before the game, or the athlete who had sweet potatoes and tuna for lunch? We’ll give you a hint: powdery sticks of fried cornmeal are not what fuel most top athletes. So what does? That’s what we asked nutrition experts who work with pro athletes in several sports. Here were their 12 most common recommendations.