To compete in the Olympics, you need to eat more calories a day than you would if you were just sitting at home writing trivia questions. Before the Beijing Olympics, how many calories did Michael Phelps claim to eat a day?

Phelps later admitted that the 12,000 calorie per day diet was just a myth, but he added that he's been known to eat up to 10,000 per day to keep up with his grueling training and the power needed to compete at the highest levels.

Asked by Tom Cohen · Last updated 5 years ago · 884 views