Ian Sample speaks to Guardian science correspondent Nicola Davis about the news that Wegovy, an appetite suppressant popular with celebrities in the US, will soon be sold at UK pharmacies. It’s a prescription drug aimed at helping people with obesity lose weight, but some argue it doesn’t tackle the root cause of the disease. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>