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
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Home Remedies for Weight Loss in the UK
When people search for home remedies for weight loss, they're often looking for natural approaches to managing their weight. While lifestyle changes like diet, exercise, and behaviour modification are proven methods that form the foundation of any weight management uk plan, many UK adults today also have access to prescription medications that can support weight loss efforts. This guide covers both traditional approaches and modern medical options available through the NHS and private prescribing.
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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.
Natural Approaches vs Prescription Weight Loss Options
Evidence-based home remedies and lifestyle changes remain the cornerstone of sustainable weight loss. These include creating a calorie deficit through balanced nutrition, increasing physical activity, improving sleep quality, managing stress, and staying hydrated. The NHS Weight Loss Plan recommends losing weight at a rate of 0.5 to 1 kg per week for sustainable results.
- Calorie deficit of around 500 kcal per day typically results in approximately 0.5 kg weekly loss
- Mediterranean diet and intermittent fasting have strong evidence for weight management
- Regular physical activity supports both weight loss and overall cardiovascular health
- Sleep deprivation increases hunger hormones — aim for 7–9 hours nightly
However, for many UK adults with a BMI of 30 or above, or 27 or above with weight-related health conditions, prescription weight loss medication may offer additional support alongside these lifestyle measures. Unlike home remedies alone, these medications are clinically proven to help achieve meaningful weight loss when combined with diet and exercise changes.
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 Management Options Available in the UK
Three prescription medications are currently licensed in the UK for weight management. Mounjaro (tirzepatide) is a dual GIP and GLP-1 receptor agonist injected once weekly, with clinical trials showing average weight loss of 15–21% of body weight. Wegovy (semaglutide) is a once-weekly GLP-1 injection with evidence of approximately clinically studied weight loss on average. Saxenda (liraglutide) is a daily GLP-1 injection with similar outcomes. All are prescription-only medicines requiring a clinical assessment by a licensed prescriber.
Access to these medications is available through NHS specialist tier 3 weight management services or through private online prescribing following assessment. Our GLP-1 weight loss calculator can help you estimate potential outcomes at different medication doses. If you're interested in exploring whether prescription weight loss medication might be right for you, the next step is speaking with your GP about your eligibility and options.
NHS Access vs Private Options — How to Get StartedNHS route: Speak to your GP about referral to your local tier 3 specialist weight management service. Availability varies by region, and waiting lists can be lengthy in some areas.
Private route: You can access prescription weight loss medication through a GPhC-registered online pharmacy following an online consultation with a UK-licensed prescriber. This option doesn't require an NHS referral and is available more quickly, though there are associated costs.
Whichever route you choose, remember that prescription medications work best alongside sustained lifestyle changes. Use our free BMI calculator to check your current BMI and understand where you sit on the health spectrum. Track your progress with our free progress tracker as you work towards your goals. Your GP can give personalised advice about which approach is most suitable for your individual circumstances.
- 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.
Are home remedies for weight loss really effective on their own?
Yes, lifestyle changes like calorie deficit, regular exercise, improved sleep, and stress management are proven effective for weight loss. However, results are typically modest (0.5–1 kg per week). For some people, especially those with a high BMI or weight-related health conditions, combining these approaches with prescription medication can accelerate results and improve long-term success.
What's the difference between home remedies and prescription weight loss options?
Home remedies (diet, exercise, behaviour change) take longer and require sustained discipline but have no side effects and are free. Prescription medications like GLP-1 injections work faster and can help suppress appetite, but they require a prescription, clinical assessment, and cost money. Best results typically combine both approaches.
How do I know if I'm eligible for prescription weight loss medication in the UK?
Adults with a BMI of 30 or above, or 27 or above with weight-related health conditions (type 2 diabetes, hypertension, sleep apnoea, cardiovascular disease), may be eligible. Eligibility is assessed individually by your GP or a licensed prescriber. South Asian and Black African adults may have lower BMI thresholds applied due to higher health risks.
Can I get prescription weight loss medication through the NHS?
Yes, through specialist tier 3 weight management services. Your GP can refer you, though waiting times vary significantly by region and can be several months. Alternatively, you can access prescription weight loss medication privately through online prescribing services without an NHS referral, usually more quickly but at a cost.
Are prescription weight loss injections like Mounjaro and Wegovy a replacement for diet and exercise?
No. Prescription medications are designed to support weight loss alongside reduced-calorie diet and increased physical activity, not replace them. Clinical trials showed these medications were effective when combined with lifestyle changes. They work best when integrated into a comprehensive weight management approach.
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.