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 Tea With Lemon For Weight Loss — And What Actually Works
Ginger tea with lemon is often suggested as a natural weight loss remedy, and whilst it may offer some modest benefits, the evidence is limited. If you're interested in weight management in the UK, there are more evidence-based approaches available. For adults with a BMI of 30 or above—or 27 or above with weight-related health conditions—prescription weight loss medications have been clinically proven to support significantly greater weight loss alongside lifestyle changes. This guide explores both natural options and NHS-approved prescription treatments available to eligible adults.
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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-Licensed Prescription Weight Loss Options
If you're looking for effective weight management in the UK, prescription medications offer substantially stronger clinical evidence than herbal teas. Three GLP-1 weight loss medications are currently licensed for eligible adults:
- Mounjaro (tirzepatide) — dual GIP and GLP-1 agonist; average weight loss of 15–21% body weight in clinical trials
- Wegovy (semaglutide) — GLP-1 agonist; average weight loss of approximately 15% body weight
- Saxenda (liraglutide) — GLP-1 agonist; daily injection option
These prescription weight loss medicines work by reducing appetite, supporting fuller feelings after smaller meals, and helping regulate blood sugar. Individual results vary, but clinical trials show these are significantly more effective than dietary supplements alone. Our free GLP-1 weight loss calculator can help you estimate potential results at different doses if you're considering prescription options.
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 Access Versus Private Routes
In the UK, weight loss medication on the NHS is available through specialist tier 3 weight management services—typically accessed via GP referral. However, NHS waiting times vary significantly by region, and access can take several months. Private prescription options are available through GPhC-registered online prescribers following a clinical assessment, without requiring NHS referral.
To find out if you're eligible, start a conversation with your GP or complete our free BMI calculator to understand your current weight category. Your GP can advise whether prescription medication might be appropriate alongside dietary changes and increased physical activity. Even a modest weight loss of 5–10% can deliver meaningful health benefits.
- 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 tea with lemon actually help with weight loss?
Ginger may have minor anti-inflammatory properties and lemon contains vitamin C, but evidence for significant weight loss is very limited. Whilst a warm drink can help with feelings of fullness, the effect is modest. For meaningful weight loss, prescription medications or substantial lifestyle changes are more effective.
What's the difference between Mounjaro and Wegovy for weight loss?
Mounjaro (tirzepatide) is a dual GIP and GLP-1 agonist, whilst Wegovy (semaglutide) targets GLP-1 alone. Clinical trials suggest Mounjaro may produce slightly greater average weight loss (15–21% versus 15%), though individual results vary. Both are once-weekly injections and prescription-only medicines requiring clinical assessment.
How do I access weight loss medication through the NHS in the UK?
Ask your GP for a referral to a specialist tier 3 weight management service. Eligibility typically requires BMI of 30 or above, or 27–29.9 with weight-related health conditions. NHS access varies by region and waiting times can be lengthy. Your GP can discuss whether you meet local criteria.
Can I get prescription weight loss medication without waiting for the NHS?
Yes. Private prescription weight loss medications are available through UK-licensed online prescribers following a clinical assessment. This route doesn't require NHS referral and is typically faster, though costs vary by dose and provider (usually £129–£320 monthly).
What's the healthy rate of weight loss recommended in the UK?
The NHS recommends losing 0.5–1 kg (1–2 lbs) per week as sustainable. This typically requires a calorie deficit of around 500 kcal daily. Prescription medications can accelerate this when used alongside reduced-calorie diet and increased physical activity—use our free progress tracker to monitor your journey.
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.