'I've lost my butt': how rapid weight loss can leave you with less muscle and more fat

GLP-1 drugs such as Mounjaro are helping millions of people rapidly lose weight. But the changes happening inside the body go far beyond the number on the scale.

Neelam Tailor investigates the growing debate around the possible risks of rapid weight loss from jabs and yo-yo dieting, which include loss of lean mass and consequences in older age. Experts say the debate isn’t just about weight-loss drugs, but about how modern dieting culture has shaped our bodies for decades