How weight-loss injections are turning obesity into a wealth issue

Weight-loss drugs have been available on the UK's NHS for some time.

But the landscape changed significantly with the introduction of some newer medications - among them, semaglutide, marketed under the brand name Wegovy, and tirzepatide, sold as Mounjaro.

They work in part as an appetite suppressant by mimicking a hormone, which makes people feel fuller, and studies have suggested patients can lose as much as a fifth of their body weight.

An estimated 1.5 million people in the UK use these drugs - but more than nine in 10 are believed to pay privately.

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