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
Does Cleansing Tea Help With Weight Loss?
Cleansing tea is often marketed as a weight loss solution, but the evidence for its effectiveness is limited. Whilst some teas contain ingredients that may offer minor metabolic benefits, sustainable weight loss requires a calorie deficit and lifestyle changes. If you're looking for weight management support in the UK, there are evidence-based prescription options available alongside diet and exercise. Our free BMI calculator can help you assess your current weight status and understand what healthy weight loss might look like 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.
What Does Cleansing Tea Actually Do?
Cleansing teas typically contain ingredients like green tea, herbal blends, or ingredients claimed to "detoxify" the body. However, your liver and kidneys already detoxify your body naturally — no special tea is needed for this process.
Some teas may offer modest benefits:
- Green tea: Contains caffeine and catechins, which may slightly increase metabolic rate — studies suggest a very small effect (around 3–4% increase), not significant for weight loss alone
- Herbal teas: May reduce appetite temporarily or support hydration, but don't create the calorie deficit needed for weight loss
- Caffeine: May increase alertness and energy expenditure slightly, but effects diminish with regular use
The reality is that cleansing teas alone cannot create the calorie deficit required for meaningful weight loss. Most weight loss from cleansing teas is water loss, not fat loss, and it returns when you stop drinking the tea.
Clinically BackedWeight Loss
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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.
Evidence-Based Weight Loss in the UK
For sustainable weight management, the NHS recommends a combination of calorie deficit (around 500 kcal/day for approximately 0.5 kg per week loss) and increased physical activity. For adults with a BMI of 30 or above, or 27 or above with weight-related health conditions, prescription weight loss medication is available in the UK.
GLP-1 medications like Wegovy (semaglutide) have clinical trial evidence showing average weight loss of around 15% of body weight when combined with lifestyle changes. These are prescription-only medicines requiring clinical assessment. Try our free GLP-1 weight loss calculator to explore potential outcomes, and discuss all options — including diet, exercise, and medication — with your GP to find the right approach for your health needs.
- 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.
Do cleansing teas help you lose weight?
Cleansing teas may offer minor metabolic benefits through caffeine or green tea catechins, but the effect is small — typically 3–4% metabolic increase. Any weight loss is usually temporary water loss. Sustainable weight loss requires a calorie deficit and lifestyle changes, not tea alone.
Is there scientific evidence for detox teas?
No. Your liver and kidneys naturally detoxify your body without special teas. The "detox" claim on many cleansing teas is not backed by scientific evidence. The NHS does not recommend detox products for weight management or health.
What actually works for weight loss in the UK?
Evidence-based methods include: a calorie deficit of around 500 kcal/day (for ~0.5 kg/week loss), increased physical activity, and dietary changes. For eligible adults, prescription weight loss medications like Wegovy may support results alongside lifestyle changes. Speak to your GP about what's appropriate for you.
Can I combine cleansing tea with weight loss medication?
There are no known harmful interactions between cleansing tea and prescription weight loss medicines. However, focus on proven methods: medication (if prescribed), calorie deficit, and exercise. Cleansing tea alone won't enhance results significantly.
How do prescription weight loss injections compare to cleansing tea?
Prescription weight loss injections like Wegovy (GLP-1 medication) have clinical trial evidence showing around 15% average body weight loss alongside diet and exercise. Cleansing teas have minimal evidence. If you meet NHS criteria, discuss prescription options with your GP for evidence-based support.
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.