Can You Get Wegovy If You're Not Overweight? What the Licence Actually Says

What the licensed BMI thresholds are and why they exist

The NICE appraisal of semaglutide for weight management (NICE TA875) sets out the conditions under which Wegovy may be prescribed on the NHS: adults with a BMI of 35 or above plus at least one weight-related comorbidity, within a specialist multidisciplinary service, for a maximum of two years. Private prescribing follows the medicine's UK marketing authorisation, which is slightly broader: BMI of 30 or above, or 27 to 29.9 with a qualifying condition such as hypertension, dyslipidaemia, obstructive sleep apnoea, type 2 diabetes or prediabetes, or cardiovascular disease. For some ethnic backgrounds, UK guidance applies those thresholds 2.5 kg/m² lower.

Those numbers are not arbitrary gatekeeping. The STEP 1 trial, published in the New England Journal of Medicine, enrolled adults with a BMI of 30 or above and demonstrated an average reduction of around 15% body weight over 68 weeks, results you can explore further if you're looking to buy the Wegovy maintenance dose of 2.4mg. The trial evidence base was built on participants who met those thresholds, the licence reflects where the clinical data actually sits. A prescriber assessing someone below the cut-off has no robust safety or efficacy evidence to draw on, and the MHRA's own guidance is clear that GLP-1 medicines are not assessed for quick or cosmetic weight loss. So if your BMI is currently below 27, the medicine is not licensed for your situation, full stop.

Worth using the NHS BMI calculator to get a precise figure, online estimates can be surprisingly off.

What 'not obese' or borderline BMI actually means for a private consultation

Many people who contact us describe themselves as "not that overweight" but then find, on checking properly, that their BMI does fall within the 27 to 29.9 bracket alongside a qualifying health condition. That combination does meet the licensed criteria. Our page on getting Wegovy if you're not obese goes into that scenario in more detail, it is more common than people expect.

A clinical assessment does not just count kilograms. A GPhC-registered prescriber looks at your full medical history, current conditions, medications and health goals. Someone at BMI 27 with well-managed hypertension may be a good candidate; someone at BMI 31 with a complex medication history may not be. BMI alone never guarantees a prescription, and the absence of an obesity diagnosis does not automatically rule one out. The conversation is the point.

If your BMI genuinely sits below 27 with no qualifying condition, the honest answer is that no legitimate regulated pharmacy in the UK can prescribe Wegovy for you right now, though our dedicated page on how to get Wegovy without being overweight explains the nuances of that position in full. You can read more about the full clinical route onto Wegovy for weight loss, including what happens at a consultation, to see what assessment looks like in practice.

The legal UK route to a Wegovy prescription, and how to check any pharmacy is genuine

The only lawful way to obtain Wegovy in the UK is via a prescription issued after clinical assessment by a registered prescriber. That prescription can come through an NHS specialist service (waiting lists are commonly long), a GP where the new contract allows, or a GPhC-registered online pharmacy carrying out a proper clinical consultation. Before you use any online service, verify it on the GPhC pharmacy register. A registered pharmacy has a premises number you can look up in seconds, ours is 9012878.

The MHRA has warned repeatedly about counterfeit weight-loss pens sold online and via social media, some containing insulin rather than semaglutide, leading to hospitalisations. Around 20 million doses of illegally traded weight-loss medicines (approximately £45 million street value) were seized in 2025 alone, including the first UK site producing counterfeit tirzepatide pens. Sellers offering these medicines without a prescription, or advertising discount codes, are red flags. Report anything suspicious at the MHRA's Yellow Card portal.

At nume, medicines are sourced through the licensed UK supply chain. Every order placed before 12pm on a working day (fits neatly into a weekday morning before the school run) is dispatched the same afternoon, once a prescriber has reviewed and approved it. You can find the full overview of what the process involves on how to get Wegovy in the UK.

If you don't meet the current threshold, what to do next

If your BMI is below 27 and you have no qualifying condition, Wegovy is not the right fit for now. That is not a dead end. The broader weight-loss treatment overview covers other clinically supported options, and it is worth reading through. For people who do sit at or above the threshold, or who are uncertain, a free consultation is the right first step, there is no obligation and no charge to find out where you stand.

If you are already on treatment and thinking about what happens when you stop, our page on coming off Wegovy without regaining weight covers the evidence on what to expect. And if you have wider questions before starting, our FAQs are a practical place to look.