When I started taking Mounjaro last year, the impact was astounding. With a reduced appetite and a muffling of the food noise which made crisps and biscuits impossible to resist, I lost two stone in six months, slimming down to 11-and-a-half stone.

The positive impact on my mental and physical health is so marked that I’ve become hopelessly addicted to my GLP-1 elixir and have continued with a low ‘maintenance’ dose (2.5mg), which I inject weekly into a pinched wedge of belly fat.

But now I’m facing a dilemma. For the past six months, I have stopped losing weight. There has been precisely zero shift on the bathroom scales. And though I’m lighter than I have been in decades, my weight is still in the ‘overweight’ category – at 5ft 7in – on the NHS BMI charts.

When my weight was falling off, I could justify the monthly cost of £180 for my Mounjaro syringe ‘pen’. Now that it’s stopped, and I’m squandering more than £2,000 a year for nothing, it feels like I need to try something new.

I could bump up my dose and spend even more. Or I could try the new, so-called ‘Godzilla jab’, retatrutide – which delivers a better weight-loss result than Mounjaro in trials, and costs a fraction of the price of my current private prescription.