Strictly Avoiding This 1 Thing Helped Jessica Simpson Lose 100 Pounds

Jessica Simpson’s 100-pound weight loss astonished — and in some cases, worried — fans. But whatever their reaction, people wanted to know the secret to how the singer and fashion designer dropped so much weight in just six months.

The answer wasn’t a miracle drug, fad diet, or punishing hours at the gym. Instead, Simpson made a number of lifestyle changes, including switching up what she ate, walking more, and getting enough sleep, her long-time trainer Harley Pasternak has revealed. Now, he’s offering more insight into what Simpson did to slim down after the birth of her daughter Birdie Mae in March. 

Jessica Simpson strictly avoided alcohol 

Jessica Simpson wearing sunglasses
Jessica Simpson | Raymond Hall/GC Images

Pasternak spoke with Us Weekly and explained that Simpson’s post-baby weight loss plan involved completely avoiding one particular thing that can stall weight loss in a big way: alcohol. 

“There are certain things that are more conducive to weight loss and certain things that are going to hurt you when losing weight, and alcohol is absolutely one of them,” the nutrition expert and celebrity trainer explained. 

“I am pretty sure she would not have been as incredibly successful in this physique transformation if she was drinking,” he added. 

Alcohol can be a major source of empty calories. A 5-ounce glass of red wine contains about 125 calories, while a 3.5-ounce margarita has 254 calories.

What Simpson’s diet looked like 

In addition to skipping wine, beer, and other alcoholic beverages, Simpson followed the guidelines Pasternak shared in his 2013 book The Body Reset Diet. Every day, she had three meals and two snacks, with a focus on protein, fiber, and healthy fats. 

Her meals might include protein-rich foods like eggs, chicken, and fish, as well as veggies and fruits. Snacks might be some almonds or green beans with parmesan cheese, he told the magazine. In a recent appearance on HSN, Simpson also said she ate a lot of cauliflower, which is low in calories and high in fiber and various vitamins and minerals. But it wasn’t all healthy foods for Simpson — during the HSN appearance, she also admitted to munching on some Cheetos in the green room.

Walking was also key 

A fitbit on a man's wrist
A man wearing the Fitbit Versa smart watch | Smith Collection/Gado/Getty Images

Walking more was also key to Simpson’s weight-loss success, Pasternak said. He urged her to walk 12,000 steps a day, and the star is reportedly hitting 14,000 steps a day on a regular basis. 

To track steps, Pasternak urges people to use a device like a Fitbit. “[I]t’s like a gym on your wrist anywhere you go,” he said. 

Though Simpson did go to the gym several days a week, that wasn’t the key to her weight loss. 

“It’s not about the workouts,” Pasternak told Us Weekly. “You don’t lose weight doing biceps curls and lunges. You lose weight by changing your diet, hitting your step goal, working on your sleep … those were the things she did so well.”

Read more: How Much Weight Did Al Roker Really Lose on the Keto Diet

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