I'm an athlete and trying to find what constitutes the healthiest breakfast I can eat. I'm considering wholemeal bread, bran flakes and fruits. So far fruits seem to be the tastiest option, but are they also the healthiest?
The food pyramid(s) are basically useless for practical numbers, but you can't fault the general advice: a balanced approach is generally best.
A real nutritionist would probably be required to give exact dietary figures, and it probably depends on what kind athletics you're doing. But making sure you get enough protein (at breakfast and throughout the day) and complex carbs (especially early in the day) is probably a good bet.