If you've ever wondered what professional athletes eat to fuel their morning, you're right: It's not Frosted Flakes or a Pop Tart. From cyclists to ultra-marathon runners, everyone has his own version of the perfect, performance-based breakfast — a meal that delivers solid nutrients, energy, and good taste. "Whatever level of an athlete you are breakfast is important, so it's good to see all of these athletes taking it so seriously," says Dr. Liz Applegate, director of sports nutrition at the University of California Davis. "Research shows people who are eating breakfast can better control their weight, their overall diet throughout the day, and have better cognitive skills at school and work." Here, six athletes share their recipes for their favorite first meal — and we tell you what the combo can do for you.