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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Ginger and Weight Loss: What the Evidence Shows
Ginger is often promoted as a natural weight loss aid, and some research suggests it may support modest improvements in metabolism and appetite control. However, the evidence is limited compared to prescription weight loss medications available in the UK. If you're looking for evidence-based weight management support, prescription options like Mounjaro and Wegovy offer clinically proven results for eligible adults. This guide explains what ginger does, how it compares to medical weight loss treatments, and which prescription options might be suitable for you.
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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.
UK Prescription Weight Loss Medications
If you're looking for robust support with weight management in the UK, prescription weight loss injections offer clinically tested results. Three medications are currently licensed for weight management:
- Mounjaro (tirzepatide) — a dual GIP and GLP-1 receptor agonist. Clinical trials showed average weight loss of 15–21% of body weight at 72 weeks alongside diet and exercise.
- Wegovy (semaglutide) — a GLP-1 receptor agonist. Clinical trials demonstrated approximately 15% average weight loss over 68 weeks.
- Saxenda (liraglutide) — a daily GLP-1 injection. Longer-established option with evidence for sustained weight loss.
All three are prescription-only and require a clinical assessment. Eligibility typically includes adults with a BMI of 30 or above, or 27–29.9 with weight-related health conditions such as type 2 diabetes, high blood pressure, or sleep apnoea. Use our free GLP-1 weight loss calculator to explore projected outcomes with these medications.
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.
NHS vs Private Access: How to Get Started
In the UK, you can access prescription weight loss medication through two routes. NHS access involves a referral to a specialist tier 3 weight management service through your GP — availability varies significantly by region and waiting times can be lengthy. Private access is available through online consultations with UK-licensed prescribers; if approved, medication is dispensed by GPhC-registered pharmacies without an NHS referral.
To find out if you're eligible, calculate your BMI using our free BMI calculator above, then discuss your results with your GP. They can advise on NHS services in your area or refer you to private options. Weight loss medication works best alongside dietary changes and increased physical activity — never as a replacement for lifestyle improvements.
- 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.
Does ginger actually help with weight loss?
Some research suggests ginger may modestly support metabolism and reduce appetite, but the evidence is limited. Clinical studies show much stronger and more consistent weight loss results with prescription medications like Mounjaro and Wegovy. Ginger may be a useful addition to overall healthy eating but should not be relied upon as a primary weight loss tool.
How much weight can you lose with prescription weight loss medication in the UK?
Clinical trial results vary by medication. Mounjaro users lost an average of 15–21% of body weight over 72 weeks. Wegovy users lost approximately 15% over 68 weeks. Individual results vary significantly and depend on your starting weight, lifestyle changes, and how your body responds to the medication.
What is the difference between Mounjaro and Wegovy?
Mounjaro is a dual GIP and GLP-1 agonist while Wegovy is a GLP-1 agonist only. Both are once-weekly injections. In clinical trials, Mounjaro showed slightly higher average weight loss, but both medications are effective. Your prescriber will assess which is most suitable for you based on your health profile.
Can I get weight loss injections on the NHS in the UK?
Yes, tirzepatide (Mounjaro) is approved by NICE for use within NHS specialist weight management services. You'll need a GP referral to a tier 3 service. However, NHS availability varies by region and waiting times can be long. Private prescription options are available without waiting if you meet eligibility criteria.
What is the BMI requirement for prescription weight loss medication?
Generally, adults with a BMI of 30 or above, or 27–29.9 with weight-related health conditions, may be eligible. Lower thresholds apply for people of South Asian, Chinese, Black African, or Black Caribbean heritage due to higher health risks at lower BMI levels. Use our BMI calculator to check your personal BMI and discuss eligibility with your GP.
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.