Elon Musk has switched! The diet injectable ‘Maunzaro’ is here

2025.10.14

‘Weight loss injections’ are driving the diet market. Tesla CEO Elon Musk’s weight-loss secret, Weegobi, has been followed by a more potent weight-loss injection called Mounzaro.

In December of last year, even Elon Musk revealed that he had used Muljaro. What is this injectable drug for type 2 diabetes or obesity?

Comparison of Mounjaro and Wegovy weight loss injection pens, with a measuring tape indicating body measurements.

There’s a saying: “The diet is 365 days a year”. People of all ages are concerned about weight management. That’s why Wigobi, an obesity treatment, has emerged.

Gastric hump works by acting on the appetite control center of the brain to increase satiety and slow down gastric emptying, which reduces food intake.

The same can be said for Saxenda, Ozemfic, Wigovi, and Mouzaro. The four drugs are as distinct as they are similar.

💉Saxenda

Ingredient: Liraglutide | Family: GLP-1

Mode of administration: Daily injection

Average weight loss: up to 8% at 56 weeks

Features: FDA approved for obesity in 2014; first-generation obesity treatment and has a high safety profile.

💉Ozemfic

Contains: Semaglutide | Family: GLP-1

Mode of administration: once-weekly injection

Average weight loss: up to 15% at 68 weeks

Features: FDA approved in 2017 as a diabetes treatment, made famous by celebrities using it for weight loss.

💉Wigobi

Contains: Semaglutide | Family: GLP-1

Mode of administration: once-weekly injection

Average weight loss: up to 15% at 68 weeks

Features: Approved by the FDA in 2021 as a treatment for obesity, the most well-known and popular obesity drug in the country.

💉Moonjaro

Contains: Tergepatide | Family: GLP-1 + GIP

Mode of administration: once-weekly injection

Average weight loss: up to 22.5% at 72 weeks

Features: FDA approved for diabetes in 2022, FDA approved for obesity in 2023, largest weight loss to date.

A woman wearing a beige corset and skin-toned tights stands in front of a clothing rack, with her hands raised behind her head, posing for a photo.
Photo via Kim Kardashian Instagram

Intermittent fasting and stomach bugs? Now with Munchies!

When Elon Musk showed up in October 2022, having lost a whopping 13 kilograms, the question on everyone’s lips was how he did it. “Intermittent fasting, and stomach bumps,” he said on Twitter.

Within four months of its launch in June of that year, Wegobi became the centerpiece of the global obesity industry and spearheaded the diet injectable craze. Kim Kardashian, Oprah Winfrey, Elon Musk, and actress Rebel Wilson, known for her Netflix movie , as well as Elon Musk, have all spoken out about their weight loss results and experiences with Wegobi.

A screen grab of Elon Musk's tweets about intermittent fasting and stomach bugs.
Photo via Elon Musk Twitter caption

However, in December 2024, Musk admitted to switching injections on social media, writing that Maunjaro “seems to work better with fewer side effects.” Unlike Saxenda, Ozemfik, and Wigobi, which are GLP-1 monologues, Muljaro is a dual agonist that also stimulates GIP receptors.

GIP is said to help control blood sugar by stimulating the release of insulin when blood sugar rises, resulting in stronger weight loss. It’s especially effective for people with diabetes, high blood pressure, and fatty liver.

‘s Rebel Wilson lost weight after using Wigobi.

Although many celebrities have not revealed their names due to the reluctance to disclose in Korea, Creator Satire and Phenibut have gained attention for their significant weight loss results. Side effects include nausea, diarrhea, abdominal discomfort, and mood swings, but they don’t seem to bother many people compared to the results.

Diet supplements have a long history, but direct, fast-acting obesity treatments have opened up a new world in today’s diet market. Novo Nordisk, the Danish pharmaceutical company behind Saxenda, Ozemfic, and Xygobi, and Eli Lilly, the U.S. company behind Mazaro, have announced that they are working on an oral obesity treatment that can be ingested.

A person in a striped shirt and dark skirt poses in front of a light-colored backdrop.
Photo/Satire Instagram

However, obesity treatments should be literally “therapeutic”. It shouldn’t focus only on external changes, not on the actual reduction of internal fat and improvement of sugar and lipid levels. Remember, it”s all about health. External changes should not be the only goal of dieting, as this encourages misuse and abuse, and is the beginning of many harms.

As with any diet, you should choose the right approach for you from a holistic perspective: health, sustainability, and quality of life. In any case, it”s important to consult with a healthcare professional and have a realistic understanding of the expectations and risks before starting. At the end of the day, dieting is not just about pills, it’s about lifestyle changes and a sustainable attitude.


Writer. Jisoo Kim

He started out as a marketer, but realized early on that clothes didn’t fit him, so he worked as an assistant and intern before becoming an editor. After working at , a magazine covering men’s high-end fashion and culture, he is currently working at , Korea’s first men’s fashion magazine. He enjoys the more interesting life of a men’s magazine than he expected and strives to create content that is useful for all ages.

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