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
Matcha Green Tea for Weight Loss — What You Need to Know
Matcha green tea is often promoted as a natural weight loss aid, and whilst it does contain compounds that may support metabolism, evidence for significant weight loss is modest. If you're looking for weight management in the UK, it's worth knowing that prescription options are available for eligible adults. This guide explains what matcha can offer, how it compares to evidence-based weight loss approaches, and what prescription weight loss medication options exist through the NHS or privately.
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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.
Prescription Weight Loss Options Available in the UK
If you're exploring weight management UK options, several prescription medications are licensed for weight loss. Mounjaro (tirzepatide) and Wegovy (semaglutide) are the most widely discussed. Mounjaro is a dual GIP and GLP-1 receptor agonist; in clinical trials, participants lost an average of 15–21% of their body weight. Wegovy works through GLP-1 activation alone; trial data showed average weight loss of around 15% body weight. Saxenda (liraglutide) is a daily GLP-1 injection option. All three are prescription-only medicines requiring clinical assessment. Unlike herbal supplements such as matcha, these glp-1 weight loss medications have robust clinical evidence behind them. Eligibility typically requires 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. Individual results vary, and these medications are most effective alongside a reduced-calorie diet and increased physical activity.
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: How to Access Weight Loss Support
NHS access: Referral to a tier 3 specialist weight management service through your GP. Availability varies by region and waiting lists can be lengthy. Private access: Through GPhC-registered online pharmacies following a clinical assessment with a UK-licensed prescriber. If you're interested in prescription weight loss medication, start by speaking with your GP about whether you might be eligible and what options are available in your area. Your GP can also discuss whether herbal approaches like matcha might complement your overall weight management strategy. Use our free BMI calculator to check where you sit currently, and our GLP-1 weight loss calculator can help you understand potential outcomes if you are eligible for prescription medication.
- 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 matcha green tea actually help with weight loss?
Matcha contains caffeine and compounds called catechins, which may slightly boost metabolism and fat burning. However, the effect is modest — studies show weight loss from matcha alone is minimal without dietary changes. Matcha is best viewed as a supportive beverage, not a weight loss solution. For significant weight loss, calorie deficit and lifestyle changes are essential.
How does matcha compare to prescription weight loss medication?
Matcha has limited clinical evidence for weight loss. Prescription medications like Mounjaro and Wegovy have robust clinical trial data showing average weight loss of 15–21%. These medications work through hormone pathways that regulate appetite. Matcha cannot compete with prescription options for meaningful weight loss, though it can be included as part of a healthy routine.
Who is eligible for prescription weight loss medication in the UK?
Adults with a BMI of 30 or above, or 27–29.9 with weight-related conditions like type 2 diabetes or high blood pressure, may be eligible. Eligibility is assessed individually by your GP or a licensed prescriber. Prescription medications are only available through NHS specialist services or private prescribing following clinical assessment.
Can I use matcha alongside prescription weight loss medication?
Yes. Matcha is a natural beverage and unlikely to interact with prescription weight loss injections. However, always inform your prescriber about any herbal products or supplements you're taking. They can confirm it's safe alongside your specific medication and discuss whether it fits your overall weight management plan.
What's the best way to start if I want to lose weight in the UK?
Begin by calculating your BMI and speaking with your GP about weight management options. Your GP can refer you to NHS services or advise on private options. Prescription weight loss medication is available for eligible adults, supported by strong clinical evidence. Lifestyle changes — balanced diet, physical activity, adequate sleep — form the foundation alongside any medication.
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.