Serena Williams says GLP-1 medications helped her lose 31 pounds.

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.

Earlier this week, Serena Williams revealed in an interview that she'd recently used GLP-1 weight-loss medication and lost 31 pounds in the process. Related: "Probably Didn't See That One Coming": People Are Sharing Celebrities Who Are Total Angels In Real Life, And Some Of Them Are Surprising Millions Of People