Harley Pasternak has shaped some of Hollywood's strongest, healthiest bodies. From getting the already-fit Halle Berry in even better shape for Catwoman to training Amy Schumer for her role in Trainwreck to keeping Ariana Grande, Jessica Simpson, and Kim Kardashian camera-ready, he knows a thing or two about helping women shape up.
So of course, when we sat down with him, we were dying to know all of his best fitness and weight-loss advice (and how he helps his star clients lose weight!). His top three tips for weight loss are simple, quantifiable, and easy to implement — starting now! It comes down to movement, sleep, and nutrition. Numbers to remember: 10K, 7, and 5.