Actress Rebel Wilson, 42, has been making major strides during her "Year of Health." She's officially lost almost 80 pounds—and she's giving her followers all the fitness updates on Instagram. Exercise and a high-protein diet helped Rebel kickstart her weight loss journey, but the Senior Year star recently clarified exactly how she got started.

On IG, she denied following the Mayr Method diet: “This was NEVER my diet," the Senior Year star wrote in a recent Instagram Story. "Also have NEVER endorsed any diet pills or magic weight loss pills," she added. "Do NOT want anyone to get scammed."

But... What is the Mayr Method, anyway? If you're curious, here's everything you need to know:

What is the Mayr Method, exactly?

The Mayr Method has actually been around in some form for ages. It’s based on the “Mayr Cure,” which was created by an Austrian doctor named Franz Xaver Mayr (sometimes referred to as F.X. Mayr). Mayr’s philosophy is that most people poison their digestive systems with the foods they eat and how they eat them.

Now, the Mayr Method is promoted at Viva Mayr, an upscale wellness facility with locations around the world. “Viva Mayr combines modern complementary medicine with traditional diagnostics and therapies according to F.X. Mayr,” the official Viva Mayr website says. “Once we have treated your condition, proper nutrition combined with exercise and improved mental awareness become the building blocks of your new life.”

OK, so how does the Mayr Method work?

The Viva Mayr Diet: 14 Days to a Flatter Stomach and a Younger You

The Viva Mayr Diet: 14 Days to a Flatter Stomach and a Younger You

The Viva Mayr Diet: 14 Days to a Flatter Stomach and a Younger You

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"The main idea behind this if people have a healthy gut system and healthy digestive system, then they are going to have a holistic approach of health," Dr. Maximilian Schubert told Today.

It all starts off with a sugar and caffeine detox, according to Women’s Health UK. It also focuses on some lifestyle changes, like focusing on chewing every bite 40 to 60 times. (The goal is to get you to chew slower and be more mindful about your food, Women’s Health UK says.) Reading, talking, or looking at your phone while you eat are forbidden, Women’s Health UK says (again, the whole mindfulness thing).

Meals include whole foods that are high alkaline, like certain fruits, veggies, and fish, according to Yahoo! News.

How much does the Mayr Method cost?

A visit to a swanky Viva Mayr facility for a consultation will set you back over $200, per Today, and overnight stays will run you way more. But there's also a book called The Viva Mayr Diet that breaks down the basics of the diet. So, there's that.

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Korin Miller
Korin Miller is a freelance writer specializing in general wellness, sexual health and relationships, and lifestyle trends, with work appearing in Men’s Health, Women’s Health, Self, Glamour, and more. She has a master’s degree from American University, lives by the beach, and hopes to own a teacup pig and taco truck one day.