Kathryn Thomas presents the first of two programmes looking at the almost overnight emergence of GLP-1 weight loss medications, such as Ozempic, Wegovy and Mounjaro, and explores their impact. While over in Hollywood, celebrities are shrinking before the eyes of the public, the medications are flying off the pharmacy shelves in Ireland. Kathryn asks, with 24 per cent of people in the obese range, will almost a quarter of the Irish population be medicated?