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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Cinnamon Water for Weight Loss in the UK
Cinnamon water is often promoted online as a natural weight loss remedy, but the evidence for its effectiveness is limited. While cinnamon may have some modest metabolic benefits, it is not a proven weight loss solution. If you're struggling with weight management in the UK, prescription medications like Mounjaro and Wegovy offer clinically tested options for eligible adults. This guide explores what the science says about cinnamon water and introduces you to evidence-based prescription weight loss alternatives available through the NHS or private prescribing.
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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.
What Does the Evidence Say About Cinnamon Water?
Cinnamon contains compounds that may have modest effects on blood sugar regulation and metabolism, but clinical evidence for weight loss is weak. A few small studies suggest cinnamon might slightly reduce appetite or blood glucose levels, but these effects are minimal and not comparable to prescription weight management. Real, sustainable weight loss requires either significant lifestyle changes (reduced-calorie diet and increased physical activity) or prescription medications with proven clinical trial data.
For weight management in the UK, two main prescription options are available: Mounjaro (tirzepatide), a dual GIP and GLP-1 receptor agonist, and Wegovy (semaglutide), a GLP-1 receptor agonist. Clinical trials show these medications can support weight loss of 15–21% of body weight on average, alongside lifestyle changes. Both are prescription-only and require a clinical assessment to confirm eligibility.
Clinically BackedWeight Loss
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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.
Prescription Weight Loss Options Available in the UK
NHS access: If you have a BMI of 30 or above (or 27–29.9 with weight-related health conditions like type 2 diabetes or high blood pressure), you may be eligible for prescription weight loss medication through NHS specialist weight management services. Access varies by region and waiting times can be lengthy.
Private prescribing: Prescription weight loss medications are also available through GPhC-registered online services following an online clinical assessment, without requiring an NHS referral. Use our free GLP-1 weight loss calculator to explore potential outcomes at different doses, and check your BMI using our BMI calculator to understand your eligibility baseline.
- 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.
Can cinnamon water actually help you lose weight?
Limited evidence suggests cinnamon may have modest effects on blood sugar and metabolism, but it is not proven for weight loss. For meaningful weight loss, prescription medications or significant lifestyle changes are more reliable approaches supported by clinical evidence.
What are the main prescription weight loss medications available in the UK?
Mounjaro (tirzepatide) and Wegovy (semaglutide) are the primary GLP-1 (and GIP/GLP-1) medications licensed for weight management in the UK. Both are prescription-only and require clinical assessment to confirm eligibility based on BMI and health factors.
Who is eligible for prescription weight loss medication on the NHS?
Generally, adults with a BMI of 30 or above, or 27–29.9 with weight-related conditions (diabetes, hypertension, sleep apnoea, heart disease history), may be eligible. Lower BMI thresholds apply for South Asian, Chinese, Black African, and Black Caribbean adults. Your GP can assess your individual eligibility.
How much weight loss can you expect with prescription medication?
Clinical trials show Mounjaro and Wegovy support an average weight loss of 15–21% of body weight over 52–72 weeks, alongside a reduced-calorie diet and increased physical activity. Individual results vary significantly — a prescriber can discuss realistic outcomes for your situation.
How do I find out if I'm eligible for prescription weight loss treatment?
Start by speaking with your GP about weight management options. They can assess your BMI, health conditions, and eligibility for NHS specialist services. Alternatively, private online prescribers can conduct a clinical assessment and issue a prescription if appropriate. Use our free BMI calculator to check your starting point.
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.