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 Weight Loss Stop Snoring? Understanding the Connection
Yes, weight loss can significantly reduce or even stop snoring in many people. Excess weight around the neck narrows the airway, causing the vibration that produces snoring and can lead to sleep apnoea. Losing even 5–10% of your body weight may improve airway function and reduce snoring severity. If you're struggling with snoring and a BMI in the overweight or obese range, weight management through diet, physical activity, or prescription weight loss medication may help. Your GP can assess whether medication might be suitable for you as part of a comprehensive weight management approach.
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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.
UK Prescription Weight Management Options for Weight Loss
For adults with a BMI of 30 or above, or 27–29.9 with weight-related health conditions like sleep apnoea, prescription weight loss medication is available in the UK. Three licensed options are approved for weight management:
- Mounjaro (tirzepatide) — a once-weekly dual GIP/GLP-1 injection. Clinical trials showed average weight loss of 15–21% of body weight over 72 weeks when combined with lifestyle changes.
- Wegovy (semaglutide) — a once-weekly GLP-1 injection. Evidence suggests average weight loss around 15% of body weight in clinical trials.
- Saxenda (liraglutide) — a once-daily GLP-1 injection. Typically produces modest weight loss when used alongside reduced-calorie diet and exercise.
All three are prescription-only medicines requiring clinical assessment. They work by reducing appetite and food cravings, helping you achieve and maintain the calorie deficit needed for sustainable weight loss. Individual results vary significantly, and medication is most effective when combined with dietary changes and increased physical activity.
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.
Accessing Weight Loss Medication: NHS vs Private in the UK
NHS access: Weight loss medication is available through specialist tier 3/4 weight management services. You'll need a referral from your GP. Waiting lists vary by region; some areas have long delays. Ask your GP about your local NHS weight management service.
Private access: Prescription weight loss medication is available through GPhC-registered online prescribing services following a clinical assessment. This route doesn't require NHS referral and is often faster, though you'll pay privately for the medication.
Either way, a licensed prescriber will assess whether medication is suitable based on your individual health, medical history, and weight-related conditions. Calculate your BMI using our free tool above to see whether you may be eligible. Your GP is the best starting point for a conversation about your options.
- 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 weight loss actually stop snoring?
Yes, in many cases. Snoring occurs when excess weight narrows the airway during sleep. Losing 5–10% of body weight can improve airway function and reduce snoring severity. If you have sleep apnoea (obstructive sleep apnoea, or OSA), weight loss may significantly improve symptoms or resolve the condition entirely.
How much weight do I need to lose to stop snoring?
Individual results vary, but even modest weight loss (5–10% of body weight) often improves snoring. For example, if you weigh 90kg, losing 4.5–9kg may noticeably reduce snoring. Larger weight losses typically bring greater improvement. Use our free weight loss calculator to estimate potential outcomes with prescription medication.
Is sleep apnoea a reason to get prescription weight loss medication on the NHS?
Yes. Sleep apnoea (obstructive sleep apnoea) is a weight-related health condition that qualifies you for consideration of prescription weight loss treatment alongside a BMI of 27 or above. This makes you eligible for NHS specialist weight management services. Ask your GP for a referral to your local service.
Can GLP-1 injections like Mounjaro or Wegovy help with snoring?
By helping you achieve weight loss, GLP-1 medications like Mounjaro and Wegovy may indirectly reduce snoring. These medications work by reducing appetite and food cravings, supporting weight loss when combined with lifestyle changes. Weight loss improves airway function during sleep. A prescriber will assess whether these medications are suitable for you.
What's the first step if I snore and want to try weight loss medication?
Book an appointment with your GP. Discuss your snoring, sleep quality, and weight concerns. Your GP can assess your BMI, check for sleep apnoea, and refer you to specialist weight management services (NHS) or discuss private options. You can use our free BMI calculator to check your current status before your appointment.
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.