On July 4 cyclists from around the world will begin the 102nd Tour de France, the prestigious three-week stage race — or "grand tour"— that happens to be the world's largest annual sporting event. All told, that's 2,087 miles of pedaling for this year's race.
Each day participants ride, on average, about 110 miles and burn some 6,071 calories, according to Inside Science, a science news site run by the American Institute of Physics.
To give you a better idea of just how many calories that is, we've teamed up with the folks at Inside Science, which originally calculated how many jelly donuts you'd have to eat to generate enough energy to keep up with a Tour de France cyclist on race day. Turns out it's 32!
Here are some more popular foods, and how many of each you'd have to eat to compete. Of course this is not what Tour de France cyclists actually eat while competing!
DON'T MISS: Take this quiz to figure out what you should be eating on a daily basis
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