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Jessica Simpson Sent a ‘Nightly Email’ to Her Trainer Harley Pasternak While Losing Weight (Exclusive)

Jessica Simpson Wearing-Alexandre-Vauthier
Jessica Simpson out and about on September 25, 2019 in New York CityBroadimage/Shutterstock

Jessica Simpson knows that one of the secrets to losing weight is to keep yourself accountable. And she did so with one great trick during the period of time she lost 100 pounds after the birth of her third baby, daughter Birdie, in April: a simple email message.

Related: Jessica Simpson’s Body Evolution

“We had a nightly email [check-in],” her trainer of 13 years, Harley Pasternak, says in the new issue of Us Weekly. “And so my clients, before they go to bed at night, send me an email and it says, Did you hit your step goal? Yes or no? Did you hit your sleep goal? Yes or no? Did you hit your unplugged goal? Yes or no? Did you hit your food goal? Yes or no? To the extent that you check yes, it gives you this sense of accomplishment at the end of every day.”

Trainer to the stars Harley Pasternak
Trainer to the stars Harley Pasternak works out fans at the SUBWAY Superfood Training Camp on July 11, 2012 in Los Angeles, California. Kent Horner/Invision/AP/Shutterstock

Pasternak famously recommends all his client wear a Fitbit (Simpson, 39, prefers the Fitbit Versa 2) and hit a daily steps goal. “Shortly after she gave birth, as soon as we got medical clearance to start walking,” the pro tells Us, “we had a daily step goal on her Fitbit. More of a limit if anything because we didn’t want to do too much.” The original number of daily steps to aim for was 6,000 a day, which is just over about two miles. Gradually, though, they went from the 6,000 “to 8,000 to 10,000, eventually to 12,000 and sometimes she even did 14,000 steps a day,” says Pasternak.

Related: Celebrities’ Weight Loss and Transformations: Before and After Pictures

The Jessica Simpson Collection designer was able to slim down so quickly even as a busy mom of three — she also has daughter Maxwell, 7, and son Ace, 6, with husband Eric Johnson — by incorporating physical activity into her daily life, rather than setting aside time for exercise.

Jessica Simpson Before and After Pregnancy
Jessica Simpson on May 11, 2018 and September 25, 2019. Shutterstock (2)

“This was really a lot more emphasis on the behaviors outside of the gym,” notes Pasternak. “We did the workout stuff, but that was later on.”

The bulk of the weight loss came from “five habits that she had to do daily,” says the pro. “Number one, hit at least 12,000 steps on her Fitbit. The second is try and get at least seven hours of quality sleep at night, not just quantity. The third was unplug from technology at least an hour a day. The fourth was follow the meal plan, the Body Reset Diet principles and a low sugar diet. Then the fifth, every other day, a short, fun workout.”

Pasternak, who founded a sugar control mint called Sweetkick and wrote the 2013 book The Body Reset Diet, advises his clients when it comes to nutrition too. For Simpson, it was “using those principles of three meals a day, two snacks and every meal having protein, fiber and healthy fat” that worked, says the L.A.-based trainer. An example of a daily menu would be scrambled eggs with a bowl of blackberries for breakfast, salad with grilled chicken for lunch, grilled fish and veggies for dinner and snacks including a handful of almonds and green beans topped with Parmesan cheese.

Jessica Simpson and Birdie Mae Instagram Dimple
Jessica Simpson and Birdie Mae. Courtesy of Jessica Simpson/Instagram

Simpson also avoids alcohol. “She’s not drinking and losing all that weight. That’s for sure,” notes Pasternak. “She’s living a healthy, balanced life.”

And that all adds up to her living her best life, says her trainer: “She’s just always amazing. I think she’s always got endless energy.”

With reporting by Marc Lupo

For more on Simpson’s incredible weight loss, pick up the new issue of Us Weekly, on stands now.

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