The New York Post reported that Phelps, who has won a record breaking eight gold medals in the pool at Beijing, ate a staggering 12,000 calories a day. That's 10,000 more calories than is recommended for the average man.A typical breakfast for Phelps? Three fried egg sandwiches topped with cheese, tomatoes, lettuce, fried onions and mayonnaise, an omelette made with five eggs, three chocolate-chip pancakes, three slices of French toast dusted with sugar, a bowl of grits, and two cups of coffee.
His lunches and dinners are similarly calorie-laden and feature plenty of pasta, ham and cheese sandwiches, pizza and energy drinks.
Jamaican Usain Bolt, on the other hand, revealed chicken nuggets were the secret to his record breaking form in the 100 metre sprint on the weekend.
After becoming the fastest man alive, Bolt was asked by a reporter what he ate for breakfast.
"I never have breakfast," the laid-back Jamaican said before going on to reveal his usual routine consists of waking up around 11am, watching TV, eating nuggets, going back to sleep for a few hours, eating some more nuggets and then going to the track.