United Kingdom, Aug. 25 -- Jameela Jamil has called out Serena Williams for promoting weight-loss medication.

The 43-year-old tennis champion revealed last week that she shed 31lbs using the GLP-1 treatment - which includes the likes of Ozempic and Mounjaro and a plays a key role in regulating blood sugar, appetite, and digestion.

However, Jameela - who has been outspoken on issues including weight culture and body image - has slammed Serena and said she finds it "uncomfortable" that she is promoting a costly drug that could potentially have many side effects and find users re-gaining the weight should they no longer afford it.

The 39-year-old actress penned on her Instagram Story: "Serena Williams is selling GLP-1s.

"The thing I feel...