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
Sleep Hypnosis for Weight Loss — What Research Actually Shows
Sleep hypnosis for weight loss is a complementary therapy that some people explore alongside lifestyle changes, but the scientific evidence for its effectiveness remains limited. Whilst hypnotherapy has been studied for weight management, it's not a standalone solution and works best when combined with a reduced-calorie diet and increased physical activity. The NHS recognises hypnotherapy as a potential adjunct to weight management, though results vary significantly between individuals. For sustainable weight loss in the UK, evidence-based approaches including dietary changes, exercise, and where appropriate, prescription weight loss medication—all managed through your GP or specialist services—remain the most reliable options.
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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 Research Say About Hypnotherapy and Weight Loss?
Clinical evidence for hypnotherapy in weight management is mixed. Some studies suggest hypnotherapy may help reduce food cravings and support behaviour change, whilst others show results comparable to placebo when used alone. A key issue is that hypnotherapy does not address the underlying physiological factors that drive weight gain, such as hormonal imbalances or metabolic factors.
The NHS notes that hypnotherapy may be considered as part of a broader weight management programme, particularly when combined with cognitive behavioural therapy (CBT) and lifestyle changes. However, it is not typically offered as a standalone NHS weight loss treatment. Individual results vary widely—some people report improved food awareness and reduced snacking, whilst others see no measurable benefit.
- Most effective when combined with diet and exercise changes
- Best suited to people motivated by psychological approaches
- Not a replacement for medical weight management
- Costs typically £50–£150 per private session in the UK
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.
Evidence-Based Weight Loss Methods That Work Better
For sustainable weight management in the UK, evidence strongly supports calorie deficit approaches (approximately 500 kcal/day for 0.5 kg weekly loss), combined with increased physical activity and behaviour change. The NHS recommends losing no more than 0.5–1 kg per week. For people with a BMI of 30 or above, or 25–29.9 with weight-related health conditions, prescription weight loss medication—such as GLP-1 injections—offers clinically proven results alongside lifestyle changes. Calculate your BMI using our free BMI calculator to assess your starting point, and discuss your options with your GP or a specialist weight management service. For personalised guidance on your weight loss journey, track your progress using our free progress tracker.
- 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 sleep hypnosis actually help you lose weight?
Sleep hypnosis may help some people become more aware of eating habits and reduce cravings, but scientific evidence is limited. It works best alongside diet and exercise changes, not as a standalone solution. Most reliable weight loss comes from calorie deficit combined with lifestyle changes and, where appropriate, prescription medication.
Is hypnotherapy available on the NHS for weight loss?
Hypnotherapy is not routinely funded by the NHS for weight loss, though some specialist services may incorporate it into broader weight management programmes. Private hypnotherapy costs £50–£150 per session in the UK. Your GP can advise whether it might complement other treatments in your area.
How does hypnotherapy compare to GLP-1 weight loss injections like Mounjaro or Wegovy?
GLP-1 medications like Wegovy have strong clinical trial evidence—showing average weight loss of 15% body weight—and work by regulating appetite hormones. Hypnotherapy evidence is weaker and more variable. Both work best alongside diet and exercise. GLP-1 medications are prescription-only and require clinical assessment, whilst hypnotherapy is complementary and available privately.
Can I use sleep hypnosis instead of changing my diet?
No. Sustainable weight loss requires a calorie deficit, which typically means dietary changes and increased activity. Hypnosis may support behaviour change and motivation, but it cannot replace the fundamental requirement for a reduced-calorie diet. The NHS recommends combining multiple approaches for best results.
What's the most evidence-based weight loss approach in the UK?
The NHS weight management pathway prioritises: (1) calorie deficit and lifestyle changes, (2) behavioural support programmes, (3) prescription weight loss medication for eligible people, and (4) specialist services for severe obesity. Calculate your BMI to see where you sit, then speak to your GP about the right approach for you.
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.