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
Free tracker included with every download this week
Post Menopause Weight Loss: Why It's Harder and What Helps
Weight loss after menopause presents unique challenges due to hormonal shifts, metabolic changes, and body composition alterations. Oestrogen decline slows metabolism, increases appetite, and promotes fat storage around the abdomen. The good news is that effective weight management strategies exist, from lifestyle changes to prescription weight loss medication available through the NHS and private prescribing. Understanding these changes and your options is the first step toward sustainable results. Check your personal BMI using our free BMI calculator above to understand where you stand relative to NHS healthy weight guidelines.
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Calculate Your BMI Instantly
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 Post Menopause Weight Loss Is More Difficult
Hormonal changes during menopause directly affect weight: oestrogen decline reduces metabolic rate by approximately 2–8% annually after age 50. Lower oestrogen also increases hunger hormones (ghrelin) and decreases fullness hormones (leptin and GLP-1), making appetite harder to control. Additionally, menopause typically involves loss of muscle mass (sarcopenia), which further reduces daily calorie burn. Abdominal fat storage increases due to hormonal shifts, even if overall weight remains stable. Sleep disruption from hot flushes and night sweats impairs recovery and increases cortisol, promoting fat storage. These factors combine to make the same diet and exercise routine less effective than pre-menopause. However, research shows that targeted weight management—whether through diet, resistance exercise, or prescription medication—remains effective. The NHS recognises these challenges and offers specialist weight management support through tier 3 services for eligible adults.
Clinically BackedWeight Loss
No appointments. No waiting rooms. Just care — from a UK-regulated online pharmacy.
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.
Free Weight Loss Tools & Guides
Everything you need to understand your weight, explore medication options, and track your progress — completely free.
Evidence-Based Strategies for Post Menopause Weight Loss
Sustainable weight loss after menopause requires a multi-pronged approach: resistance and strength training (3–4 sessions weekly) helps rebuild muscle and boost metabolism more than cardio alone. A moderate calorie deficit of 500 kcal daily typically supports loss of 0.5 kg weekly alongside dietary consistency. Protein intake of 1.2–1.6g per kg body weight preserves muscle during loss. Mediterranean-style eating patterns show strong evidence for post-menopausal health. For those struggling with lifestyle changes alone, prescription weight loss medication—available through NHS weight management services or private prescribing—may help. GLP-1 weight loss medications support appetite regulation and may be particularly beneficial when hormonal appetite changes persist. Use our free weight loss calculator to explore projected outcomes with different approaches, and our progress tracker to log real results over time.
- 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.
Why do women gain weight after menopause?
Menopause causes oestrogen decline, which reduces metabolic rate by 2–8% annually, increases hunger hormones, and promotes abdominal fat storage. Concurrent muscle loss further reduces daily calorie burn. These hormonal shifts make weight management harder even with the same diet and exercise routine as before menopause.
Is weight loss possible after menopause?
Yes, weight loss is absolutely possible post-menopause. However, it typically requires more deliberate effort than before due to metabolic changes. Evidence-based strategies including resistance training, adequate protein, moderate calorie deficit, and sometimes prescription medication remain effective. Your GP or a weight management specialist can help create a personalised plan.
What is the best diet for post menopause weight loss?
Research supports Mediterranean-style diets, higher protein intake (1.2–1.6g per kg), and moderate calorie deficit. Consistency matters more than following trendy diets. Low calorie diets should only be pursued under medical supervision. Your GP can refer you to a dietitian for personalised guidance aligned with your health needs.
Can GLP-1 medications help with post menopause weight loss?
Yes, GLP-1 weight loss medications like Wegovy (semaglutide) may help by supporting appetite regulation—which is particularly beneficial post-menopause when hormonal appetite changes persist. Clinical trials show average weight loss of approximately 15% with medication alongside diet and exercise. Prescription-only—eligibility is assessed individually by a prescriber.
Where can I access weight loss support in the UK?
The NHS offers weight management through specialist tier 3 services (via GP referral) for eligible adults with BMI ≥30 or ≥27 with weight-related health conditions. Private online prescribing is also available. Use the BMI calculator on this page to check your starting point, then discuss options with your GP or a licensed prescriber.
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.