How much protein do you need on Wegovy — and why it matters more than you think

You're eating less. Here's why protein has to come first.

Picture week three of Wegovy. Your portions have shrunk, foods you used to crave feel easy to ignore, and you're genuinely not hungry at lunchtime. That's the treatment working. The problem is that when overall calorie intake drops sharply, the body doesn't pull exclusively from fat stores, it will also break down muscle if protein supply runs short. Muscle is metabolically expensive to maintain, so the body treats it as fair game during a calorie deficit.

Preserving muscle while losing fat is the goal, and protein is the main tool available. For adults on a GLP-1 medicine like semaglutide, published nutritional guidance and clinical practice both point toward a daily protein target in the region of 1.2–1.6 g per kilogram of body weight, with some practitioners suggesting up to 1.8 g/kg for people who are particularly active. Wegovy's licensed use is alongside a reduced-calorie diet and increased physical activity, the protein target is part of making that pairing work. If you want a thorough breakdown of how much protein on Wegovy is typically recommended and why the range exists, our dedicated guide covers the evidence in detail. NHS guidance on healthy eating during weight management is a good starting reference, and the NHS semaglutide medicine page links to further nutritional support resources.

A practical note: if you weigh 90 kg, 1.4 g/kg means around 126 g of protein a day. Spread across three small meals, that's roughly 40 g per sitting, achievable with eggs, Greek yoghurt, fish, chicken, legumes or a protein supplement where meals are very small.

The appetite question (and how Wegovy changes the arithmetic

A question our prescribers hear most weeks runs something like this: "I'm just not hungry enough to hit my protein target) should I force it?" The honest answer is that the nausea and early satiety many people experience, particularly after a dose increase, can make eating feel like a chore. This is temporary for most people, but it's also the window where dietary quality matters most.

Prioritising protein at the start of each meal (before vegetables or carbohydrates) is a strategy supported by clinical dietitians working with GLP-1 patients. When your stomach signals fullness after 10 bites, those 10 bites should count. Liquid or semi-solid protein sources (Greek yoghurt, scrambled eggs, protein shakes) are often more manageable during the first weeks of a new dose than a plate of solid food. Hydration is equally important: the GI effects of semaglutide, including nausea, constipation and occasional vomiting, create a real dehydration risk, and dehydration compounds fatigue.

Resistance exercise alongside your treatment preserves muscle more effectively than protein intake alone. Short sessions, even 20 minutes of bodyweight work at home, make a meaningful difference over a 68-week course. Understanding how much protein while on Wegovy you actually need day to day is something your prescriber or a registered dietitian can help you calculate properly, and our guide walks through the key variables. Our page on how much protein per day on Wegovy is realistic for different body weights and activity levels is also worth reading alongside that. For personalised targets, how much protein you should eat on Wegovy depends on factors your prescriber or a registered dietitian can help you calculate properly. The NHS Live Well healthy weight pages also provide accessible guidance on nutrition alongside weight management.

What Wegovy costs in the UK, and what the price actually covers

UK private Wegovy pricing has shifted considerably. Eli Lilly's widely-reported September 2025 list-price increase affected the broader market, and as a result private treatment now typically runs from roughly £149 to £375 per month depending on the dose and provider. Those are the figures in circulation; what they represent varies considerably between services.

Headline prices from some providers are for the medicine alone. Consultation fees, prescription fees, delivery charges and any ongoing clinical support are billed separately, or simply absent. If a question during treatment about protein intake, nausea management or your next dose has nowhere to go, that's a meaningful gap in the service, not a detail. Our guide on how much protein to eat on Wegovy is one of the resources available to patients who want clear, practical answers without having to search elsewhere.

At nume, there is one price. It covers the clinical consultation, the prescription, the treatment, free next-working-day tracked delivery through DPD, and seven-day-a-week aftercare access. We aren't the cheapest option in the market, that's a deliberate choice. You can see current treatment pricing on our Wegovy pricing page, and a fuller look at how providers compare is available on our Wegovy price comparison breakdown. If you want to understand the wider private weight-loss treatment landscape, our weight loss treatment overview is a good starting point.

Why 'cheapest' is the wrong question for a prescription medicine

Wegovy is a Prescription-Only Medicine. The legal route to it in the UK runs through a clinical assessment by a prescriber who reviews your weight, medical history and any medicines you already take. Any listing offering semaglutide at prices far below the market range, or signalling that you can skip that assessment, is a red flag worth taking seriously.

The MHRA has warned publicly and repeatedly about counterfeit weight-loss pens circulating online. Some fake pens have been found to contain insulin rather than the stated medicine, a potentially life-threatening substitution. The MHRA's Yellow Card scheme at yellowcard.mhra.gov.uk accepts reports of both suspected side effects and suspect sellers. You can verify any online pharmacy's registration on the GPhC register; nume's registration number is 9012878.

For a prescription medicine, the relevant measure isn't the lowest price, it's whether clinical oversight is real, whether the supply chain is legitimate, and whether someone is available if something doesn't feel right. That's the comparison worth making. When you're ready to explore whether Wegovy is clinically suitable for you, checking your eligibility starts with a free consultation.