NBA great Charles Barkley had a prolific basketball career and is now prolific at losing weight.

During an appearance on «The Pat McAfee Show,» Barkley, 60, revealed his secret to losing weight from 352 to 290 pounds.

«I exercise. I take my injection once a week,» he said, referring to the prescription drug Mounjaro.

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NBA great Charles Barkley is honored for being selected to the NBA’s 75th Anniversary Team during halftime of the 2022 NBA All-Star Game at Rocket Mortgage FieldHouse on February 20, 2022 in Cleveland. (Kyle Terada/USA Today Sports)

According to information from the US Food and Drug Administration, mounjaro is used along with diet and exercise to help regulate blood sugar in adults with type 2 diabetes.

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Barkley previously mentioned that he was taking Mounjaro during an episode of «The Dan Patrick Show» on May 26.

The «Inside the NBA» commentator said the weight loss changed the way he felt about himself. «I started in 352 [pounds]he said. «And I’m down to 290. I’m starting to feel like a human being.»

Charles Barkley speaks ahead of ECF Game 3

Charles Barkley before Game 3 of the Eastern Conference Finals between the Boston Celtics and the Miami Heat at the Kaseya Center on May 21, 2023 in Miami, Florida. (Megan Briggs/Getty Images)

She added that her doctor warned her that carrying excessive weight as she got older was not ideal.

«My doctor told me, ‘There are a lot of fat young people. There aren’t a lot of fat old people. They’re all dead,'» Barkley noted.

Charles Barkley during the national championship

College basketball analyst Charles Barkley on air before the NCAA Men’s Basketball Tournament Championship game between the Connecticut Huskies and the San Diego State Aztecs at NRG Stadium on April 3, 2023, in Houston. (Mitchell Layton/Getty Images)

After Barkley said he takes the injections to help him lose weight, McAfee asked, «Do you know exactly what it’s doing to you?»

A smiling Barkley admitted that he had no idea of ​​the science behind medicine.

«I have no idea what it does,» Barkley said.

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Mounjaro is the trade name for tirzepatide. It is similar to other popular drugs like Ozempic and Wegovy, which are brand names for semaglutide. Wegovy was approved by the FDA in 2021.

Wegovy was initially intended to treat patients with chronic obesity, while Ozempic was intended for people with type 2 diabetes.