Should I Try Wegovy? A Calm, Honest Look at the Decision

You've been thinking about this for a while — here's what the evidence actually says

Many people who ask this question have already tried calorie restriction, increased exercise, or both, without the results they hoped for. That's not a failure of willpower. Weight regulation is shaped by biology as much as behaviour, and semaglutide works on the hormonal signals that drive hunger rather than asking you to simply eat less through effort alone.

The STEP 1 trial, published in the New England Journal of Medicine, found that adults using semaglutide 2.4mg alongside a reduced-calorie diet and increased activity lost around 15% of their body weight on average over 68 weeks. That figure is a clinical-trial average, not a personal guarantee, individual results vary depending on starting weight, adherence, lifestyle factors and how well the medicine is tolerated.

The most useful framing is not "will this work?" but "am I a good candidate, and am I ready to combine it with lasting changes to eating and activity?" Wegovy is licensed as an adjunct to lifestyle modification, not a standalone fix. Our Wegovy overview covers the full picture of how it works and what the evidence shows.

Who tends to be a strong candidate, and who might not be

The licensed eligibility criteria for Wegovy in the UK are a BMI of 30 or above, or a BMI between 27 and 29.9 alongside at least one weight-related condition such as high blood pressure, type 2 diabetes, high cholesterol, or obstructive sleep apnoea. Lower BMI thresholds apply for some ethnic backgrounds under UK clinical guidance.

Beyond the numbers, a prescriber will also look at your broader medical history. Wegovy is not recommended during pregnancy, while breastfeeding, or if you are actively trying to conceive. It is not licensed for anyone under 18. A personal or close family history of medullary thyroid carcinoma or a condition called MEN2 syndrome, or a history of pancreatitis, are among the situations that require careful prescriber discussion and may affect suitability. The NHS medicines page for semaglutide sets out the full contraindication list in plain language.

The honest answer is that eligibility is not something a checklist can settle. It is the kind of question our clinical team exists to answer, taking your full history, current medicines and health goals into account before reaching any conclusion.

What starting treatment actually involves day to day

Wegovy is injected once a week, in the abdomen, thigh, or upper arm, on the same day each week. Treatment starts at a low dose (0.25mg) that gives your body time to adjust, and the prescriber titrates upward approximately every four weeks toward the 2.4mg maintenance dose. Some people remain at an intermediate dose if tolerability is a concern.

The most common side effects are gastrointestinal: nausea, loose stools, constipation, and reflux. These tend to be most noticeable in the early weeks or after a dose step, and many people find they settle within a fortnight. Staying well hydrated helps. Eating slowly, keeping portions moderate, and avoiding high-fat or very rich meals can reduce nausea significantly.

One practical note: if you order by noon on a working day and your consultation is approved, your treatment ships the same afternoon. The pen arrives in plain, unbranded packaging the next working day via tracked DPD. You store it in the fridge, and from there the weekly routine is fairly low-maintenance. For people wondering about the cost of private treatment, our Wegovy pricing page explains what is included in a single transparent price.

The NHS route versus starting privately, what changes

NICE recommends semaglutide (TA875) for weight management, but with conditions: it should be used for a maximum of two years, within a specialist weight management service, and for adults with a BMI of 35 or above and at least one weight-related comorbidity. Waiting lists for those services are long in most parts of England, and the criteria are strict. NICE's full recommendation sets out exactly who qualifies and what the support pathway looks like.

For people who do not meet NHS thresholds, or who cannot wait, a private prescription from a regulated online pharmacy is the legal alternative. The key word is regulated. Any pharmacy supplying a prescription-only medicine in the UK must be registered with the GPhC, you can verify any provider at the GPhC register. At nume, every consultation is reviewed by a GPhC-registered Independent Prescriber. That is a regulatory requirement, not a marketing claim, and it applies whether you are starting treatment or requesting a dose increase.

If you are still working out whether this is the right path for you, our guidance on whether Wegovy is the right choice for you, on whether you should take Wegovy, and on whether now is the right time to get Wegovy cover some of the personal and clinical factors in more depth alongside the broader question of whether to go on Wegovy. When you are ready to take the next step, start your free consultation and a prescriber will review your situation the same day.