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
Will Hypnosis Work For Weight Loss?
Hypnosis is often marketed as a structured approach for weight loss, but the evidence is limited. While some people report modest benefits, most UK health experts — including the NHS — recommend combining structured weight management with evidence-based approaches like dietary changes, physical activity, and where appropriate, prescription weight loss medication. This guide explores what the science actually shows about hypnosis and more effective options available to 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 the Evidence Say About Hypnosis for Weight Loss?
Clinical research on hypnotherapy for weight loss shows mixed results. A 2022 systematic review found that hypnosis produced only modest weight loss — typically around 2–3 kg on average — with individual responses varying significantly. Most studies comparing hypnosis to no treatment showed small benefits, but when compared to standard weight management approaches, the differences were often negligible.
The NHS does not recommend hypnosis as a primary weight management strategy. Instead, the health service emphasises a structured approach: calorie deficit of around 500 kcal per day, increased physical activity, and dietary behaviour change. For weight management UK, the evidence-based tier system includes support from GPs, specialist services, and where clinically appropriate, prescription weight loss medication.
Important: Some hypnotherapists claim rapid or studied results, but these claims are not supported by robust clinical evidence. Any weight loss achieved through hypnosis alone tends to be modest and temporary without accompanying lifestyle changes.
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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 Approaches That Work Better
For sustainable weight loss, the NHS recommends combining dietary changes with increased physical activity — targeting 0.5–1 kg loss per week. Calculate your current weight status with our free BMI calculator to see where you stand, and use our weight converter to track changes across kg, stone, and lbs.
If lifestyle changes alone aren't enough, prescription weight loss medication has stronger evidence. GLP-1 medications like Wegovy (semaglutide) and Mounjaro (tirzepatide) are licensed in the UK and show clinical trial results of 14–clinically studied weight loss on average. Our GLP-1 weight loss calculator can help you explore potential outcomes. Access via NHS specialist services or private prescription requires a clinical assessment from a licensed prescriber.
For most people, the most effective approach combines realistic dietary goals, physical activity, and professional support — not hypnosis alone.
- 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.
Is hypnosis an effective weight loss treatment according to the NHS?
The NHS does not recommend hypnosis as a primary weight loss treatment. Instead, the health service recommends combining a calorie deficit (roughly 500 kcal/day), physical activity, and behaviour change support. Clinical evidence for hypnosis shows only modest weight loss (typically 2–3 kg) with mixed results across studies.
Can hypnosis replace diet and exercise for weight loss?
No. Hypnosis alone is not an effective substitute for dietary changes and physical activity. Weight loss requires a calorie deficit — either through reduced intake, increased activity, or both. Hypnosis may play a minor supportive role in motivation, but the evidence is limited compared to structured weight management programmes.
What's the difference between Wegovy and hypnosis for weight loss?
Wegovy (semaglutide) is a prescription GLP-1 injection licensed in the UK specifically for weight management. Clinical trials show an average weight loss of around 15% of body weight, compared to hypnosis results of 2–3 kg. Wegovy requires a clinical assessment and prescription, whereas hypnosis is unregulated and shows limited evidence.
How can I get NHS support for weight loss if hypnosis doesn't work?
Contact your GP, who can refer you to your local weight management service. The NHS offers structured programmes, behaviour change support, and access to prescription weight loss medication if you meet eligibility criteria (BMI 30+, or 27+ with weight-related health conditions). Waiting times vary by region.
Are there better alternatives to hypnosis for weight loss?
Yes. Evidence supports calorie-controlled eating, regular physical activity, and behaviour change programmes. For people who struggle with lifestyle changes alone, prescription medications like Mounjaro or Wegovy show strong clinical trial evidence. Our free progress tracker can help you log weight loss progress alongside whichever approach your GP recommends.
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.