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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What Is Mungaro? A UK Health Information Guide
Mungaro is not a recognised medication name in the UK healthcare system. If you're searching for weight management information, you may be looking for Mounjaro (tirzepatide) or Wegovy (semaglutide) — both are prescription-only GLP-1 receptor agonist injections licensed for weight management in the UK. This guide clarifies the difference between these medications, how they work, and how to access them through NHS guidance or private prescribing. Our free BMI calculator can help you understand whether your weight falls within a healthy range according to NHS standards.
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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.
Common Weight Loss Medication Names in the UK
If you've encountered the term "Mungaro", it may be a misspelling or variation of Mounjaro (tirzepatide), manufactured by Eli Lilly. Mounjaro is a dual GIP and GLP-1 receptor agonist — a once-weekly injectable medication licensed in the UK for weight management in adults. Alternatively, you may be thinking of Wegovy (semaglutide), a GLP-1 receptor agonist made by Novo Nordisk. Both are prescription-only medicines requiring clinical assessment before being prescribed. They work by activating natural hormone pathways that help regulate appetite and support feeling fuller after smaller meals. Alongside a reduced-calorie diet and increased physical activity, these medications may help eligible adults lose weight. Individual results vary significantly based on dose, lifestyle factors, and personal health circumstances. Always consult your GP for personalised advice about which medication, if any, might be appropriate for your situation.
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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.
Free Weight Loss Tools & Guides
Everything you need to understand your weight, explore medication options, and track your progress — completely free.
How to Find the Right Weight Management Information
When researching weight loss medications, using accurate medication names is essential for safety and clarity. If you're unsure whether Mounjaro or Wegovy is right for you, start by checking your BMI using our free BMI calculator above — this will help you understand your current weight status according to NHS guidelines. You can also use our weight converter to check your weight in both metric and imperial measurements. To estimate potential weight loss outcomes with GLP-1 medication, try our free GLP-1 weight loss calculator. For personalised guidance, contact your GP who can discuss your health history, eligibility criteria, and whether prescription weight loss treatment is appropriate. NHS specialist weight management services are available in many areas, though access varies by region and waiting times can be lengthy.
- 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.
What is Mungaro and is it available in the UK?
Mungaro is not a recognised medication in the UK healthcare system. You may be referring to Mounjaro (tirzepatide) or Wegovy (semaglutide), both licensed for weight management. Both are prescription-only and require clinical assessment before being dispensed.
What's the difference between Mounjaro and Wegovy?
Mounjaro (tirzepatide) is a dual GIP and GLP-1 receptor agonist with a maximum dose of 15mg weekly. Wegovy (semaglutide) is a GLP-1 agonist only, with a maximum dose of 2.4mg weekly. Clinical trials showed Mounjaro achieved slightly higher average weight loss (~21% vs ~15% body weight), though individual results vary significantly.
How do I access weight loss injections on the NHS in the UK?
Speak to your GP who can refer you to a specialist tier 3 weight management service if eligible. Eligibility typically requires a BMI of 30 or above, or 27–29.9 with weight-related health conditions. NHS availability varies by region. Private prescribing is also available through UK-licensed online prescribers.
Are Mounjaro and Wegovy the same as Ozempic?
No. Ozempic contains semaglutide (like Wegovy) but is approved for type 2 diabetes, not weight management. Wegovy is the licensed weight management version. Using Ozempic for weight loss off-label is not recommended. Always use the correctly licensed medication.
What should I do if I'm searching for weight loss medication information?
Verify the correct medication name before researching. Use our free BMI calculator to check your weight status, then contact your GP for personalised guidance. They can assess your eligibility and discuss which licensed treatment, if any, suits your health profile and circumstances.
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.