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Jillian Michaels Slams the Keto Diet in a Rant: ‘Why Would Anyone Think This Is a Good Idea?’

Jillian Michaels visits Build on December 18, 2018 at Build Studio in New York City.Nicholas Hunt/Getty Images

Jillian Michaels is ready to make one thing clear: She is decidedly not a fan of the popular keto diet.

Related: Celebs Crazy for Keto: These Stars All Swear by the High-Fat, Low-Carb Ketogenic Diet

The celebrity trainer went on an epic rant about the diet trend that’s sweeping Hollywood at the moment. In a video for Women’s Health, she said, “I don’t understand. Like, why would  anyone think this is a good idea?”

“You know what we need to do? All fat and animal protein,” the former Biggest Loser trainer continued in a mocking voice, before laying down the law. “No! Bad plan. For a million reasons.”

Michaels, 44, who is known for her extremely tough but supportive training style and effective workout routines, went on to outline the reasons she thinks the high-fat, low-carb ketogenic diet — in which the goal is for the body to go into a state of ketosis to burn fat stores — is an unhealthy eating plan.

Jillian Michaels attends the’s 1st annual STRONGER Weekend Retreat at Rose Bowl on August 4, 2018 in Pasadena, California. Tibrina Hobson/Getty Images

Related: The Top 10 Most Searched Diet Trends of 2018, According to Google: Keto, Dr. Gundry and More

“Let’s start with the first [reason]: your cells. Your macromolecules are literally made up of protein, fat, carbohydrates, nucleic acids. When you do not eat one of the three macronutrients — those three things i just mentioned — you’re starving your cells,” she said. “Those macronutrients serve a very important purpose for your overall health and well-being. Each and every one of them. Period, end of story.”

Plenty of Hollywood stars from Halle Berry to Vinny Guadagnino to Vanessa Hudgens swear by the nutrition plan. Jenna Jameson lost 80-plus pounds following the keto diet and frequently shares her before and after photos and tips with her Instagram followers. The 44-year-old former adult movie actress raved about keto to Us earlier this month, saying “I have found my niche with keto. It’s sustainable and I feel like my body is running at its optimal level.”

Related: Keto, Fasting, 80/20 and More: These Diets Have Helped Stars Shed Major Pounds

Michaels, meanwhile, urges people to resist the temptation of any particular diet plan. “You don’t eat processed sugar, you don’t eat processed grains and to make a very long story short, avoid the keto diet,” she said at the conclusion of her rant. “Common sense: A balanced diet is key.”

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