And probably, it's also thanks to giving into temptation once in a while, as she revealed on the current episode of Keeping Up with the Kardashians.
"Before you start on this lifestyle thing that you're doing, we need to go on a fun Food God adventure," her BFF Jonathan Cheban beckoned.
They were in New York City, so the pals went for the perfect slices of pizza at Famous Joe's with sister Khloe Kardashian, and then chased a Mister Softee ice cream truck.
"I am dying for this," she said, with a dipped and sprinkled cone in hand. "This was so worth it."
"I honestly could not have imagined a better last supper," she reminisced afterwards.
The Feast is Bravo's home for the biggest, boldest, most crave-worthy eating experiences. Want more? Then Like us on Facebook to stay connected to our daily updates.