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
Which Green Teas Are Best For Weight Loss?
Green tea has long been associated with weight management, and there is genuine scientific evidence supporting its benefits. Several types of green tea contain compounds called catechins—particularly EGCG (epigallocatechin gallate)—which may support metabolism and fat oxidation. However, green tea works best as part of a broader weight management strategy that includes reduced-calorie diet and increased physical activity. This guide explains which green teas have the strongest evidence and how they fit into sustainable weight loss in the UK.
10,000+ calculations today · NHS-aligned thresholds · 100% free
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.
Which Green Teas Have the Most Weight Loss Evidence?
Japanese green teas typically contain higher levels of catechins than Chinese varieties. Matcha—a powdered green tea from Japan—contains concentrated amounts of EGCG and may offer more potent effects than steeped green tea. Sencha and gyokuro are also rich in catechins. Chinese green teas like dragonwell and gunpowder green tea contain meaningful amounts of catechins, though generally lower concentrations than Japanese varieties.
Clinical studies suggest that consuming 2–3 cups of green tea daily, or approximately 150–300 mg of EGCG, may support modest increases in fat oxidation and thermogenesis (calorie burn). The effect is modest—typically contributing to an additional 50–100 calories burned per day—so green tea alone will not create meaningful weight loss without a calorie deficit.
For weight management in the UK, combining green tea with a reduced-calorie diet, increased physical activity, and where appropriate, prescription weight loss medication through your GP or licensed prescriber creates the most effective approach.
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.
How to Maximise Green Tea's Weight Loss Potential
Drink green tea without added sugar or honey—sweetened versions negate potential metabolic benefits. Steep tea at 70–80°C for 3–5 minutes to preserve catechins; boiling water can degrade these compounds. Consistency matters: daily consumption over weeks is more effective than occasional use.
Green tea also provides other health benefits including antioxidants and modest cardiovascular support. However, excessive consumption (more than 8 cups daily) may cause caffeine-related side effects or interact with certain medications.
If you're interested in evidence-based weight loss support, try our free GLP-1 weight loss calculator to explore medically supervised options alongside lifestyle changes. Use our BMI calculator to track how your weight management progress relates to healthy weight ranges for your height.
- 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 green tea actually help with weight loss?
Green tea contains EGCG catechins, which clinical evidence suggests may modestly increase fat burning and metabolism. Studies show an additional 50–100 calories burned daily with regular consumption. However, green tea alone is not sufficient for meaningful weight loss—it works best alongside a calorie-reduced diet and increased physical activity.
Which green tea is best—matcha, sencha, or Chinese varieties?
Japanese matcha and sencha contain higher concentrations of EGCG catechins than most Chinese green teas. Matcha offers concentrated benefits as a powder. All green teas provide some catechins. Choose based on taste preference and consistency—the tea you'll drink regularly is the best choice for you.
How many cups of green tea should I drink daily for weight loss?
Evidence suggests 2–3 cups daily (approximately 150–300 mg EGCG) may support modest metabolic benefits. More than 8 cups daily is not recommended due to caffeine content and potential side effects. Consistency over weeks matters more than quantity consumed at once.
Can green tea replace prescription weight loss medication?
No. Green tea provides modest metabolic support but cannot replace the effects of prescription GLP-1 medications like Wegovy or Mounjaro. For significant weight loss, especially if you have a BMI over 30 or weight-related health conditions, discuss prescription options with your GP or a licensed prescriber.
What's the best way to prepare green tea to preserve its weight loss benefits?
Steep at 70–80°C (not boiling) for 3–5 minutes to preserve catechins. Drink without added sugar or honey. Consume consistently daily. Store tea away from heat and light to maintain compound integrity. Fresh, high-quality loose-leaf tea generally contains more catechins than old tea bags.
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.