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 Hypnotherapy Work For Weight Loss?
Hypnotherapy is sometimes promoted as a weight management tool, but scientific evidence for its effectiveness remains mixed and limited. Whilst some people report modest benefits, the strongest evidence for sustainable weight loss comes from a combination of lifestyle changes—dietary adjustments, increased physical activity, and behavioural support. For adults seeking NHS weight loss support or prescription options, your GP can discuss evidence-based approaches tailored to your individual circumstances.
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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 the Evidence Say About Hypnotherapy?
Clinical research on hypnotherapy for weight loss shows inconsistent results. A systematic review published in the International Journal of Obesity found that whilst some studies reported modest weight reductions, the effects were generally small and often similar to placebo interventions. Several trials showed that hypnotherapy plus dietary counselling produced slightly better outcomes than diet alone, but improvements were typically in the region of 2–3kg over several months.
The UK's NICE (National Institute for Health and Care Excellence) does not currently recommend hypnotherapy as a standalone first-line treatment for weight management. Instead, evidence-based approaches focusing on calorie deficit, regular physical activity, and behavioural change are considered more reliable. However, hypnotherapy may help some individuals manage stress-related eating or strengthen motivation when combined with other methods.
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.
Prescription Weight Loss Options in the UK
If you're looking for evidence-backed weight management support in the UK, several prescription options are now available. GLP-1 weight loss injections like Mounjaro and Wegovy have shown significantly stronger clinical evidence—Wegovy trials demonstrated average weight loss of around 15% of body weight when combined with diet and exercise. Liraglutide (Saxenda) is another GLP-1 option available on the NHS through specialist weight management services or privately.
Your GP can assess whether you're eligible for prescription weight loss medication based on your BMI and health circumstances. Use our free BMI calculator to check your current BMI, and our GLP-1 weight loss calculator can help you understand potential outcomes with medication support.
- 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.
Can hypnotherapy alone help me lose weight?
Evidence suggests hypnotherapy alone produces minimal weight loss. It may help manage emotional eating or motivation, but sustainable results typically require combined dietary changes, increased activity, and behavioural support. Your GP can discuss evidence-based weight management approaches suited to your circumstances.
Is hypnotherapy available on the NHS for weight loss?
Hypnotherapy is rarely available on the NHS for weight management. The NHS focuses on tier-based services including lifestyle programmes, dietary support, and prescription medications. Some private practitioners offer hypnotherapy, but results are variable. Ask your GP about NHS weight loss services available in your area.
How does GLP-1 weight loss injection compare to hypnotherapy?
GLP-1 medications like Wegovy and Mounjaro have stronger clinical evidence. STEP trials showed Wegovy participants lost approximately 15% of body weight on average. Unlike hypnotherapy, GLP-1 works through a biological mechanism affecting appetite and blood sugar. Both work best combined with lifestyle changes and dietary support.
What's the most effective weight loss approach in the UK?
The strongest evidence supports combining: calorie deficit (around 500 kcal/day for ~0.5kg weekly loss), regular physical activity, and structured behavioural support. For eligible adults, NHS weight loss programmes or prescription medications offer evidence-backed options. Your GP can help you choose what suits your health profile and circumstances.
Are there NHS weight loss options besides medication?
Yes. NHS tier 1–2 services include digital tools, community weight management programmes, and behaviour change support through your GP. Tier 3 services provide specialist multidisciplinary teams. Calculate your BMI using our free tool to discuss eligibility with your GP, and our weight converter helps track progress in your preferred units.
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.