What Olympians eat can vary tremendously depending not only on the events they're competing in, but also their body type and lifestyle outside the Olympic arena. Their diets are affected not only by the demands of their sports, but by everything else in their lives, things that are almost impossible to accurately measure and factor in.
Let's face it: so much of what we consume is not driven by knowledge but by basic craving and impulse. The process of what we eat starts in our heads. And no one is more in our heads than a food industry that spends billions of dollars in marketing its message in every means possible.
I primarily have had my career in comedy, and that is something that I have never been too concerned about because I know there is really no room for vanity in comedy. Comedy comes from pain and it is a lot easier to empathize with somebody who is out of shape.