The UK's most complete GLP-1 guide
Every Question Answered. Every Side Effect Explained.
- How GLP-1 medications work
- Mounjaro vs Wegovy compared
- Injection instructions
- Side effects & solutions
- What to eat on treatment
- FAQs answered
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Managing Weight Loss During Menopause in the UK
Weight gain during menopause is one of the most common concerns for UK women, with hormonal changes making it harder to maintain a healthy weight. Many women gain between 5–10 kg during the menopause transition, even when their eating habits haven't changed significantly. Understanding why this happens and what support is available — from lifestyle changes to prescription weight loss medication — can help you manage your health effectively. This guide covers evidence-based approaches to weight management during menopause in the UK context.
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Enter your height and weight below. Supports both imperial (stone & lbs) and metric (kg). Results include NHS category, healthy weight range, and ethnicity adjustments.
What Is BMI and Why Does It Matter?
Body Mass Index (BMI) is the most widely used screening tool for assessing whether your weight falls within a healthy range. Used by the NHS, GPs, and weight management services across the UK, BMI provides a quick snapshot of your weight relative to your height. The formula is simple: your weight in kilograms divided by your height in metres squared (kg/m²).
While BMI isn't a perfect measure — it doesn't account for muscle mass, bone density, or fat distribution — it remains the standard first step in identifying potential weight-related health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.
The NHS also recommends adjusted thresholds for people of South Asian, Chinese, or Black African heritage — a BMI of 23 or above is classified as overweight, and 27.5 as obese. Our calculator includes this adjustment as a one-click toggle.
Why Weight Changes Happen During Menopause
During menopause, oestrogen and progesterone levels drop significantly, which directly affects how your body manages weight. These hormonal changes alter:
- Metabolism — your resting metabolic rate slows by approximately 2–8%, meaning you burn fewer calories at rest
- Fat distribution — fat increasingly accumulates around the abdomen rather than the hips and thighs, even at the same overall weight
- Appetite regulation — hormonal shifts affect hunger signals and satiety, making it easier to overeat
- Muscle mass — oestrogen decline accelerates muscle loss, which further reduces metabolic rate
Additionally, menopause symptoms like hot flushes, night sweats, and poor sleep quality can trigger cravings for high-calorie foods and reduce motivation for physical activity. These are biological changes, not personal failings — and they respond well to targeted support.
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How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
Use our progress tracker to log your weight weekly, visualise your journey with charts, and stay motivated — all stored privately in your browser.
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Managing Menopause Weight Gain — Lifestyle and Medical Options
The first step is usually lifestyle modification: increasing protein intake to preserve muscle, reducing refined carbohydrates, increasing physical activity (particularly strength training), and managing sleep. Many women find success through the NHS weight loss plan or community weight management programmes. However, if lifestyle changes alone aren't working after 3–6 months, you may be eligible for prescription weight loss medication.
In the UK, GLP-1 weight loss medications — including semaglutide (Wegovy) and tirzepatide (Mounjaro) — are now available for weight management in adults with a BMI of 30 or above, or 27 or above with weight-related health conditions. Many menopausal women meet these criteria. These prescription medications work by helping regulate appetite and blood sugar, and clinical trials have shown average weight loss of 14–21% of body weight. Your GP or a prescriber can assess whether this option is suitable for you.
- Dual GIP/GLP-1 receptor agonist
- Up to 22.5% body weight loss (SURMOUNT-1)
- Weekly injection, dose escalation over 20+ weeks
- Available via private prescription in the UK
- Doses: 2.5mg → 5mg → 7.5mg → 10mg → 12.5mg → 15mg
- GLP-1 receptor agonist
- Up to 15–17% body weight loss (STEP trials)
- Weekly injection, 5-step dose escalation
- NHS & private prescription available
- Doses: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg
Mounjaro vs Wegovy: Head-to-Head
A side-by-side comparison of the two most popular GLP-1 weight loss medications available in the UK.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, vomiting, diarrhoea |
Data sourced from SURMOUNT-1 and STEP 1 clinical trials. Costs are approximate and vary by provider. Always consult a prescriber.
Am I Eligible for Weight Loss Medication?
In the UK, eligibility for GLP-1 weight loss medications like Mounjaro and Wegovy is based on your BMI and overall health profile.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- BMI of 27 or above
- Plus type 2 diabetes
- Or high blood pressure
- Or obstructive sleep apnoea
Use our BMI calculator to check whether your BMI falls within the eligible range.
How We Built These Tools
Every calculator and guide on myweightcheck is built with accuracy and transparency in mind. Our BMI calculator uses the standard WHO formula with NHS-aligned category thresholds. Our GLP-1 projections are modelled on published clinical trial data from SURMOUNT and STEP studies.
All data stays on your device. We don't require sign-ups, and we don't store your health information on any server. Your progress tracker saves data locally in your browser using localStorage, so only you can see it.
We're based in the UK and our tools are designed specifically for UK users — supporting stone & lbs by default, referencing NHS guidelines, using NICE-approved medication data, and linking to GPhC-registered pharmacies.
Frequently Asked Questions
Common questions about BMI, weight loss medications, and our free UK tools.
Is weight gain during menopause inevitable?
Weight gain is very common during menopause due to hormonal changes, but not inevitable. Many women successfully manage or prevent significant weight gain through increased physical activity, strength training, adequate protein intake, and good sleep. However, it typically requires more effort than before menopause due to the metabolic changes involved. If lifestyle changes aren't sufficient, prescription support is available.
Can I use the NHS weight loss programme during menopause?
Yes. The NHS Weight Loss Plan and tier 3 weight management services are available to all eligible adults, including menopausal women. Your GP can refer you, or you can access digital programmes online. Many women find these particularly helpful during menopause because they address both the physical and emotional aspects of weight management during this life stage.
What is GLP-1 weight loss medication and is it suitable for menopausal women?
GLP-1 medications like Wegovy (semaglutide) are prescription-only injections that help regulate appetite and blood sugar. They're licensed in the UK for weight management in adults with a BMI of 30 or above, or 27+ with health conditions. Many menopausal women are eligible. Clinical trials showed average weight loss of around 15% body weight alongside lifestyle changes. Menopausal women often benefit particularly because the medication addresses the hormonal appetite changes that make menopause weight gain so difficult to manage.
How is menopause weight loss different from other weight loss?
Menopause weight loss is typically slower and requires more effort because your metabolism is naturally lower due to hormonal changes and muscle loss. Strength training is particularly important to preserve muscle mass. The fat distribution also changes — abdominal weight gain is more likely. A personalised approach works better than generic diet advice. Your GP can help tailor a plan to your menopause stage and individual health.
Should I try prescription weight loss medication if lifestyle changes aren't working?
If you've tried lifestyle changes for 3–6 months without success, and your BMI is 27 or above with weight-related health conditions (or 30+), prescription medication may help. Use our free BMI calculator to check your BMI, then discuss options with your GP or a licensed prescriber. They'll assess whether medication is appropriate for you based on your individual health. Many menopausal women find that combining medication with lifestyle support gives the best results.
Ready to take control of your weight loss journey?
Start with a free BMI check, explore your GLP-1 options, or begin tracking your progress today. No sign-up. No cost. Just results.