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A quarter of adults in England now classed as having obesity. Pharmacy is here in the UK to begin selling a controversial weight loss jab. It's called wagovi or semag lutide and it will be available with a prescription. Some see the jabs as a potential game changer in the fight against the disease that cost the NHS £6 billion a year.

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 theguardian.com/sciencepod