THESE days, any celebrity with a newly svelte figure has to face speculation about whether their secret weapon is the weight-loss drug semaglutide (also known as Wegovy or Ozempic). Gossip like this might give the impression that these injections are chiefly a cosmetic treatment, but the celebrity examples are a distraction from their intended use.
Such treatments have the potential to reverse the decades-long trend of rising obesity rates – especially as future versions look set to be more potent still (see “Beyond Wegovy: Could the next wave of weight-loss drugs end obesity?”). But in some quarters of the…