8,000 CALORIES
“Steak with olive oil drizzled all over, grape sodas, chips, burritos,” Kirstie Alley, 70, says of what she ate at her heaviest. “I had a ‘holiday’ mentality.”
11,000 CALORIES
“It was fun for about an hour,” Mark Wahlberg says of packing on about 40 pounds for his new movie, Father Stu. “I would wake up after a meal and have another meal.”
10,000 CALORIES
“Lots of pizza and pasta” powered swimmer Michael Phelps, 36, to win his record-setting 23 Olympic gold medals.
7,764 CALORIES
“Hello, gluttony,” Dwayne Johnson, 49, has said of his famous cheat meals, which often include foot-tall stacks of pancakes, trays of cookies and multiple pizzas. Luckily, all those muscles burn it off!
4 ,780 CALORIES
The actress, 52, went from a size 2 to…