Williams revealed on the "Today" that she has been taking a GLP-1 medication to help with weight loss over the past yea r, following the birth of her second daughter. The 23-time Grand Slam champion said she had lost 31 pounds since starting the medication, although she didn't specify exactly which medication she used.

Tennis star Serena Williams' candor about her GLP-1 use may help dispel the pesky health inaccuracy that weight loss is a simple matter of exercise.