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
Can Moringa Help With Weight Loss?
Moringa is often promoted as a superfood that might support weight loss, but the evidence is limited. While moringa leaves contain nutrients and may have some health benefits, there's no strong scientific proof that moringa alone causes weight loss. If you're looking for evidence-based weight management support in the UK, prescription medications and structured approaches are available for eligible adults. This guide explains what research shows about moringa and introduces clinically proven options your GP can discuss with 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.
Prescription Weight Loss Options Available in the UK
If you're exploring weight management in the UK, several prescription options are available through NHS specialist services or private prescribing. These are backed by clinical trial evidence:
- Mounjaro (tirzepatide) — A once-weekly injection that activates two natural hormone pathways. Clinical trials showed participants lost an average of 15–21% of their body weight alongside dietary changes.
- Wegovy (semaglutide) — A GLP-1 injection taken once weekly. In trials, adults lost approximately 15% of body weight on average.
- Saxenda (liraglutide) — A once-daily GLP-1 injection option, also evidence-based for weight loss medication support.
All require a prescription following clinical assessment. Use our free GLP-1 weight loss calculator above to explore potential outcomes at different doses, and our BMI calculator to see whether you might be eligible based on NHS thresholds.
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 Access — How to Get Started
NHS pathway: You can ask your GP for a referral to a tier 3 specialist weight management service. Availability varies by region, and waiting lists can be long. However, costs are covered if approved.
Private pathway: GPhC-registered online services offer consultations with UK-licensed prescribers. If clinically suitable, you can access prescription weight loss medication without an NHS referral. Costs typically range from £129–£320 per month depending on dose.
Either way, a healthcare professional will assess your individual health before prescribing. If you have a BMI of 27 or above with weight-related health conditions, or BMI of 30 or above, you may be eligible. Use our weight converter to find your weight in your preferred units, then discuss options with your GP.
- 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 moringa actually help you lose weight?
Moringa contains nutrients and antioxidants, but clinical evidence for weight loss is very limited. Moringa alone is not proven to cause weight loss. It may have general health benefits as part of a varied diet, but for evidence-based weight management, prescription medications like Mounjaro and Wegovy have strong clinical trial support in the UK.
What's the difference between Mounjaro and Wegovy for weight loss?
Both are prescription-only once-weekly injections. Mounjaro (tirzepatide) activates two hormone pathways and showed slightly higher average weight loss (~15–21%) in trials. Wegovy (semaglutide) activates one pathway with similar outcomes (~15% average). Both require clinical assessment. Your prescriber will advise which suits you better.
How do I know if I'm eligible for prescription weight loss medication in the UK?
You may be eligible if you have a BMI of 30 or above, or BMI of 27–29 with a weight-related health condition (high blood pressure, diabetes, heart disease, sleep apnoea, etc.). People of South Asian, Chinese, Black African, or Black Caribbean heritage have lower thresholds. Ask your GP or use our free BMI calculator to check your starting point.
Can I get weight loss injections on the NHS?
Yes, through specialist tier 3 weight management services. You'll need a referral from your GP. NHS availability varies significantly by region, and waiting times can be several months. Private prescribing offers faster access but involves costs. Both routes require a clinical assessment before prescription.
Is prescription weight loss medication used alone or with diet changes?
Prescription medications like Mounjaro and Wegovy are most effective alongside a reduced-calorie diet and increased physical activity. They support appetite control and feeling fuller, but lifestyle changes remain essential. Track your progress with our free progress tracker to monitor both weight and healthy habits over time.
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.