On the Weight-Loss Medicines Everyone’s Talking About

For a class of drugs this new and this fast-moving, the noise-to-signal ratio is punishing. Every week brings a fresh headline — a new formulation, a new fear, a new miracle claim — and it is genuinely hard to know what to believe. This week we tried to cut through it.

The occasion is a real one: the Wegovy pill has arrived in the UK, putting semaglutide in tablet form for the first time and removing the needle that put many people off. It’s a genuine milestone, and a good moment to step back and look at the whole picture calmly — what these medicines actually are, what they do, what they cost you in muscle if you’re not careful, and how to use them well.

To mark it, we’ve also launched something new: the first in a series of free, in-depth Learn guides — starting with a complete, plain-English guide to GLP-1 medications. It’s our deep dive this week, and it sits below.

— The Vitae Team

Semaglutide — the drug behind Wegovy — is now available as a daily tablet, not just an injection. What the pill does, how it compares, and the strict way it must be taken.

Some of the weight lost on GLP-1 drugs is muscle, not fat — but the picture is more reassuring than the headlines suggest. What the evidence shows, and how to protect your muscle.

With Wimbledon in full swing, a striking body of research keeps reaching the same conclusion: racket sports are linked to longer life than almost any other exercise. The likely reason isn’t fitness.

England’s epic win over Mexico came at 2,240 metres in Mexico City, where the thin air itself is an opponent. The physiology of why exercise gets so much harder at altitude — and why the body needs weeks, not days, to adapt.

If you were among the millions up until the early hours for England’s win, this one’s for you. The evidence-based way to get through a late night and the day after — from the pre-match nap to the coffee-nap trick.

And for the practical, UK-focused comparison of the specific injections — which works best, what they cost, how to access them — our most-read article remains the place to start: Mounjaro vs Wegovy vs Ozempic Compared →

Appetite suppression makes it hard to hit the protein your muscles need. Anchor every meal around a protein source and eat it first — aim for roughly 1.2–1.6g per kg of body weight per day.

The single most effective way to protect muscle while losing weight. No gym required — bodyweight, bands, or light dumbbells, twice a week, is enough to make a real difference.

If you were up for England’s win, get outside into daylight early and take a short walk — natural light and gentle movement are the most effective ways to reset your body clock and feel human again.

The longevity research keeps pointing at the social side of exercise. A doubles match, a five-a-side, a club run — the company may matter as much as the movement.

The weight-loss medicines are neither the miracle nor the menace they’re alternately made out to be. They’re powerful, genuinely effective tools with real trade-offs, that work best alongside the unglamorous basics — enough protein, some resistance training, lasting changes to how you eat and move. Understanding them properly is the first step to using them well, which is what this week was all about.

And congratulations to England — worth every lost hour of sleep. Back next Wednesday.

The Vitae Team

The Village in the Middle of London

This week we went to Marylebone — the quiet village in the middle of London, where world-class things are done without the fuss. A Michelin bistro and a luxury boxing gym on the same street, a hotel built where a brutalist car park stood, a recovery studio hidden in a cave, and one of the greatest art collections in the world, free to enter and easy to walk straight past.