What this means is that by changing only one hormone, “suddenly you change your entire relationship with food”, says Prof Giles Yeo, an obesity scientist at the University of Cambridge. And that has all sorts of implications for the way we think about obesity.

Drugs such as Novo Nordisk’s Ozempic can cut drug and alcohol abuse by up to 50%, a study found, adding to mounting evidence that the drugs yield health benefits beyond diabetes and weight loss.

A weight-loss drug more effective than Ozempic and Wegovy has recently been approved. Here’s how it works and how it compares with Ozempic.