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
Is Detox Tea Good for Weight Loss?
Detox tea is widely marketed for weight loss, but the evidence for its effectiveness is limited. While some herbal teas may have modest benefits for metabolism or digestion, they are unlikely to produce significant weight loss on their own. Sustainable weight management in the UK typically requires a calorie deficit combined with lifestyle changes. If you're looking to lose weight, your GP can discuss evidence-based approaches including dietary changes, physical activity, and prescription weight loss options if appropriate for your health profile.
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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/mΒ²).
While BMI isn't a perfect measure β it doesn't account for muscle mass, bone density, or fat distribution β 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 β 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 Show?
Most "detox tea" claims lack robust scientific support. While certain ingredients like green tea contain compounds that may slightly boost metabolism, the effect is minimalβtypically burning only 50β100 extra calories per day at most. The NHS notes that sustainable weight loss requires a calorie deficit of around 500 kcal per day, which no tea alone can achieve.
- Green tea contains catechins that may have a small thermogenic effect
- Herbal teas like ginger or peppermint may aid digestion but don't directly cause weight loss
- Marketing claims about "detoxifying" the body are not evidence-basedβyour liver and kidneys naturally detoxify without special teas
- Any weight loss from detox tea is typically water loss, not fat loss
For meaningful weight management in the UK, evidence supports calorie-controlled eating, increased physical activity, and behavioural changes. Your GP can provide personalised guidance on weight management approaches suited to your health needs.
Clinically BackedWeight Loss
No appointments. No waiting rooms. Just care β 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 β 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 β completely free.
What Actually Works for Weight Loss?
The NHS recommends losing weight at a rate of 0.5β1 kg per week through sustainable lifestyle changes. This means a daily calorie deficit, regular movement, and consistent habits over time. For adults with a BMI of 30 or above, or 27 or above with weight-related health conditions, prescription weight loss options may be available through specialist services.
GLP-1 medications like Mounjaro and Wegovy are prescription-only weight loss injections that, combined with diet and exercise, have shown meaningful results in clinical trials. Use our free BMI calculator to check your current BMI and understand your starting point. If weight loss is a priority, discuss evidence-based options with your GP or a qualified prescriber who can assess what's suitable for you.
- 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 β 5mg β 7.5mg β 10mg β 12.5mg β 15mg
- GLP-1 receptor agonist
- Up to 15β17% body weight loss (STEP trials)
- Weekly injection, 5-step dose escalation
- NHS & private prescription available
- Doses: 0.25mg β 0.5mg β 1mg β 1.7mg β 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 | 15β22.5% | 12β17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20β32 weeks | 16β20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | Β£150βΒ£250/month | Β£150βΒ£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 β 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 help with weight loss?
Green tea contains catechins that may slightly increase metabolic rate, potentially burning 50β100 extra calories daily. However, this is far too small to produce meaningful weight loss alone. Green tea is part of a healthy diet but should not be relied upon as a weight loss tool. Sustainable loss requires a calorie deficit and lifestyle changes.
Can detox tea cleanse your body?
No. The "detox" claims made by tea manufacturers are not evidence-based. Your liver and kidneys naturally filter waste from your blood without needing special teas. Terms like "detoxifying" and "cleansing" are marketing language not supported by clinical science. Focus on diet, hydration, and exercise for genuine health benefits.
What's the most effective way to lose weight in the UK?
The NHS recommends a calorie deficit of approximately 500 kcal per day to lose about 0.5 kg weekly. This combines reduced-calorie eating, increased physical activity, and consistent behaviour change. For eligible adults, prescription weight loss medication alongside lifestyle changes may be considered through specialist NHS services or private prescribing.
Should I try detox tea instead of seeing my GP?
No. If weight loss is important to you, speak with your GP first. They can assess your health, discuss evidence-based approaches, and determine if prescription options like GLP-1 injections might be suitable. Detox teas alone will not produce the results that structured weight management plans, supported by medication if needed, can achieve.
How does prescription weight loss medication compare to detox products?
Prescription medications like Mounjaro (tirzepatide) and Wegovy (semaglutide) are GLP-1 agonists that work on appetite and satiety hormones. Clinical trials show average weight loss of 15β21% of body weight over time, far exceeding any effect from detox teas. These require a prescription and clinical assessment but are evidence-based and NHS-approved for eligible adults.
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.