India, Aug. 24 -- Tennis champion Serena Williams has caused a stir after revealing that using GLP-1 medication has been key to her weight-loss journey. After two pregnancies, she found it hard to return to a healthy weight despite rigorous diet and training. The 43-year-old, who has reduced 31 lbs, is one of the many global celebrities, including the likes of Sharon Osbourne, Rebel Wilson and Lizzo. Serena's admission has sparked mixed reactions from the medical community and the Internet alike. Let us tell you 10 most important things to know about GLP-1 drugs.

Serena Williams got her GLP-1 treatment through direct-to-patient healthcare company Ro, of which she has become a brand ambassador. Popular brands of these anti-diabetes and an...