Ozempic and similar weight-loss drugs have become Hollywood's worst-kept secret, with celebrities from billionaires to reality stars admitting they've used the medications to slim down.

The injectable drug — originally developed to treat Type 2 diabetes — works by mimicking a hormone that targets areas of the brain that regulate appetite and food intake.

While many stars have been suspected of using Ozempic, Wegovy or Mounjaro to achieve dramatic weight loss, only a handful have spoken out about their experiences.

Here are all the famous faces who've admitted to using Ozempic and similar drugs.

Elon Musk

Elon Musk
Elon Musk credited weight-loss drugs for his physical transformation.

The Tesla and SpaceX CEO credited Ozempic and Wegovy for his slimmed-down physique after he posted a shirtless photo in 2022.

"Ozempic/Wegovy," Musk tweeted in response to a fan who asked how he looked "fit, ripped and healthy."

Musk's admission was one of the first high-profile celebrity endorsements of the drug for weight loss.

Oprah Winfrey

Oprah Winfrey
Oprah Winfrey has been open about her weight loss journey.

The media mogul revealed in December 2024 that she uses a weight-loss drug but didn't specify which one.

"I now use a weight-loss drug as a tool to manage my weight, not as a crutch," she told People magazine.

Winfrey has been vocal about her decades-long weight loss journey and said the medication helped her break through a plateau.

Video: Meghan Trainor, Oprah and other celebrities who've admitted to using Ozempic (4:03)

Amy Schumer

The comedian and actress admitted to using Ozempic but said she eventually stopped due to the side effects.

"I tried it. I was one of those people that felt sick and couldn't play with my son," Schumer said on a podcast.

Schumer said she lost weight on the drug but decided it wasn't worth the negative effects on her quality of life.

Full List of Celebrities Who've Admitted to Using Weight-Loss Drugs

Elon Musk
Tesla CEO confirmed using Ozempic/Wegovy for weight loss
Oprah Winfrey
Media mogul admitted to using a weight-loss drug as a "tool"
Amy Schumer
Comedian tried Ozempic but stopped due to side effects
Rebel Wilson
Actress used medication to help maintain weight loss
Kelly Clarkson
Singer revealed using a medication that helped regulate blood sugar
Shanna Moakler
Former Miss USA admitted to using Ozempic for weight loss
Dolores Catania
"Real Housewives of New Jersey" star used Ozempic
Tracy Morgan
Comedian said he used Ozempic to lose 50 pounds
Braunwyn Windham-Burke
"Real Housewives of Orange County" alum used weight-loss drugs
Chelsea Handler
Comedian admitted to unknowingly taking Ozempic
Fat Joe
Rapper credited weight-loss drug for 100-pound weight loss
Meghan Trainor
Singer said she used medication after pregnancy
Michael Rubin
Billionaire entrepreneur used Mounjaro
Serena Williams
Tennis star hinted at using weight-loss medication
Tori Spelling
Actress admitted to trying Ozempic
Kathy Bates
Actress spoke about using weight-loss medication
Golnesa Gharachedaghi
"Shahs of Sunset" star used weight-loss drugs
Renee Graziano
"Mob Wives" alum admitted to Ozempic use
Alabama Barker
Daughter of Travis Barker tried weight-loss medication

Controversy and Shortages

Pharmacy with medication
The popularity of weight-loss drugs has led to shortages for diabetics.

The trend has sparked debate about the accessibility of the drug, with shortages reported for diabetics who rely on it for medical reasons.

Many doctors have expressed concern that the off-label use of diabetes medications for cosmetic weight loss could limit access for patients who need them to manage their health conditions.

As more celebrities come forward, the conversation around weight-loss drugs continues to evolve, with discussions about appropriate use, insurance coverage, and long-term effects.

Side Effects and Considerations

While Ozempic and similar drugs have shown remarkable effectiveness for weight loss, they come with potential side effects including nausea, vomiting, diarrhea, and in rare cases, more serious complications.

"These are powerful medications that should be taken under medical supervision," warned Dr. Holly Lofton, weight management specialist at NYU Langone Health.

Experts recommend that anyone considering these drugs consult with a healthcare provider to discuss whether they're appropriate and to monitor for potential side effects.

The drugs are typically prescribed alongside diet and exercise changes for sustainable weight management.