After years of GLP-1 ads spotlighting anonymous bellies and dancing commercial actors, telehealth firm Ro is ushering in weight-loss drugs’ celebrity-endorsement era.

Serena Williams, one of the most successful athletes of all time, has spoken out about using weight loss drugs - she says, to lift the "stigma" around using such medication. Will her outspoken comments instil a new sense of confidence in those using the drugs? And could her honesty quieten the critics?