The Amazon best-selling diet book Jessica Simpson used to achieve her remarkable weight loss

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Jessica Simpson is quaratoned.

The 39-year-old mom of three recently took to Instagram to share a stunning poolside photo in a jaw-dropping bikini. “Attempted gettin’ some sun and my son smacked a homerun from the driveway that almost nailed me in the face. Proof is in the splash. Needless to say, I got off the mat,” she captioned the photo.

Simpson made headlines back in September 2019 after she revealed her remarkable 100-pound weight loss in just a matter of six months. Her social media post explained that she “tipped the scales at 240” after giving birth to her third baby.

So how did she do it? Last October, In The Know caught up with Simpson’s longtime trainer and Sweetkick founder Harley Pasternak, who shared the tips and tricks the singer used to get back in shape.

“Three meals and two snacks a day following the principles of “The Body Reset Diet” —  where she’s having protein, fiber and healthy fat in her meals. She loves Tex-Mex flavor. She doesn’t want eating well to feel like a punishment or a diet. The food still has to be delicious and that’s why she was really able to (and still does) continue with it,” he explained.

“There’s a great apple pie smoothie in there that [Jessica] loves. Sometimes in the morning, she’ll do a scramble. The Body Reset Diet is smoothies, soups, salads, scrambles, stir fry and sandwiches. It’s really simple and doable. Unlike me, I like the same thing every morning, Jessica really mixes it up and she’s so busy between three kids and running big businesses, I think it gives her variety. She’s amazing,” Pasternak said.

The Body Reset Diet was made popular by Pasternak through his best-selling book, “The Body Reset Diet Cookbook: 150 Recipes To Power Your Metabolism,” which has garnered a cult following. 

Shop: The Body Reset Diet Cookbook, $13,99 (Kindle) $32.95 (Paperback)

Credit: Amazon

“I bought this book year ago and I lost 40 pounds on smoothies. I just love it. I had a problem with BP cholesterol, but everything is healthy now. I can’t even describe in words how much this book helped me. I practically think it saved my life,” one Amazon customer shared in a review.

Pasternak recently founded Sweetkick, a 14-day sugar reset in the form of a powerful breath mint.

“It’s a plant-based mint. It’s the safest thing in the entire world. You just pop it in your mouth. It’s a two-week rest. It’s a blend of the active ingredients Gymnema (a flower), inulin (found in jicama and artichoke) and Spearmint oil — and when you combine it together, it actually goes into your sugar receptors, so when you eat sugar there’s no room left for sugar to bind to your taste receptors on your tongue so you don’t taste sugar,” Pasternak explained.

The mint sold out nationally after it aired on E!’s “Revenge Body with Khloe Kardashian.” Shop it here.

Shop: The Body Reset Diet: Power Your Metabolism, $9.99 (Kindle), $10.94 (Paperback)

Credit: Amazon

If you enjoyed this story, In The Know also covered Adele’s birthday Insta that sparked a debate about body positivity.

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