By Olivia Bahou
Updated Mar 02, 2016 @ 12:45 pm
Each product we feature has been independently selected and reviewed by our editorial team. If you make a purchase using the links included, we may earn commission.
In Alexander Wang, 2016
Credit: John Shearer/WireImage

Oscar winner Jennifer Lawrence has often been vocal about her love for pizza and burgers—so just how does the svelte star manage to maintain her figure and still indulge?

“It’s all about balance,” the actress writes in the foreword for The Feelgood Plan: Happier, Healthier, and Slimmer in 15 Minutes a Day by Dalton Wong.

The London-based trainer started working with Lawrence in 2010 for the film X-Men: First Class and figured out how to get her in great shape while still letting her enjoy a vice or two. ”I could never live on a ‘diet,’” Lawrence says in the book, according to People. “Dalton taught me how to eat, move, and live a delicious but healthy life.”

The duo follow sweat sessions with “burgers and fries,” a workout regimen we can definitely get behind. “You have to exercise, you have to eat well, but you can go out on a Friday night, and yes, you can have a candy bar,” Wong tells People.

And though he permits indulgences, he has Lawrence working in tiny workouts whenever possible. “In between scenes we would squeeze in 15 minutes of exercise—things we could do on the fly like squats and lunges,” he says. “You don’t just get an instant lift, you build a lasting change.”

Lawrence’s enviable figure is the proof that you can have your cake and eat it too—just as long as you keep moving.

The Feelgood Plan: Happier, Healthier, and Slimmer in 15 Minutes a Day ($15; hits bookshelves March 8.