STARS FIGHT FLAB WITH INJECTIONS

What are the jabs? ‘They're drugs, delivered by injection, that help you lose weight by suppressing appetite. ‘They are available to some through the NHS to treat obesity and people who are overweight with other conditions. ‘They can also be bought privately.

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How do they work? By mimicking hormones in the body which regulate hunger and cause you to feel full. They slow down digestion and the time it takes for your tummy to empty too and can also regulate blood sugar and energy levels, helping to reduce cravings.

What are the different types? The best known are Wegovy and Mounjaro. Wegovy contains the drug semaglutide and is known as a GLP-1 receptor agonist. This means it acts like the naturally occurring GLP-1 hormone in the body, sending signals to your brain that you've eaten.

Mounjaro contains tirzepatide, which not only mimics GLP-1 but another hormone called GIP which has a role in metabolism. This is thought to boost its effectiveness.

In the UK, the brand Ozempic, which contains a lower dose of semaglutide, is only prescribed for managing Type 2 diabetes and not for weight loss.

How do you take them? You inject yourself with the pre-filled pens once a week - usually in the thigh or stomach. Users typically start on a low dose, working up to what's called a maintenance dose.