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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Is Cider Apple Vinegar Good for Weight Loss?
Apple cider vinegar has become popular as a potential weight loss aid, but does the evidence support its use? The short answer is: evidence is limited and modest at best. Some small studies suggest apple cider vinegar may have minor effects on appetite and blood sugar control, but these results are far from assured or significant. For meaningful weight management in the UK, the NHS recommends focusing on proven strategies: calorie deficit, balanced nutrition, and physical activity. If you're struggling with weight management, speaking to your GP is always a good first step.
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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 the Evidence Actually Shows
Research into apple cider vinegar and weight loss remains limited and inconclusive. A small 2018 study found that consuming vinegar with a high-carbohydrate meal may slightly reduce blood sugar spikes and potentially increase feelings of fullness — but the effect was modest. Most studies use very small sample sizes, and results don't translate to significant, measurable weight loss for most people.
The proposed mechanism is plausible: acetic acid (the main active compound in vinegar) may slow stomach emptying slightly, potentially reducing appetite. However, the UK's evidence-based weight management guidance from the NHS doesn't list apple cider vinegar as a recommended strategy. Instead, NHS weight loss focuses on creating a sustainable calorie deficit of around 500 kcal per day, which typically results in losing approximately 0.5 to 1 kg per week.
If you want to track your progress with proven methods, try our free BMI calculator above to establish your current health baseline, and use our GLP-1 weight loss calculator to explore evidence-based approaches to weight management in the UK.
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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.
How It Compares to Proven Weight Loss Methods
Apple cider vinegar alone is unlikely to produce meaningful weight loss. By contrast, prescription weight loss medication like GLP-1 injections (such as Mounjaro or Wegovy) — available through NHS specialist services or private prescription — have demonstrated weight loss of 15–21% of body weight in clinical trials, supported by lifestyle changes.
Similarly, conventional approaches to weight management like reduced-calorie diets, increased physical activity, and behavioural support have strong evidence behind them. The NHS weight loss pathway emphasises sustainable, long-term changes over quick fixes. If you're interested in prescription weight loss options or want to understand your BMI in the context of your health, our weight converter and BMI calculator can help you assess your starting point and explore what's available in the UK.
- 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 apple cider vinegar burn fat?
No. Apple cider vinegar does not burn fat. While small studies suggest it may have minor effects on blood sugar and appetite, there is no credible evidence that it causes fat loss. Weight loss requires a calorie deficit, typically achieved through reduced-calorie diet and increased physical activity.
Is apple cider vinegar recommended by the NHS for weight loss?
No. The NHS does not recommend apple cider vinegar as a weight loss strategy. Instead, NHS guidance focuses on sustainable calorie deficit, balanced nutrition, increased physical activity, and — where appropriate — prescription weight loss medication accessed through specialist services.
How much apple cider vinegar should you take for weight loss?
The NHS does not recommend a specific dose because apple cider vinegar is not established as an effective weight loss tool. Taking vinegar in large amounts can damage tooth enamel and may interact with certain medications. Speak to your GP before using vinegar as a health supplement.
What are proven weight loss methods in the UK?
Proven methods include: calorie deficit (approximately 500 kcal/day for sustainable loss), balanced diet, regular physical activity, behavioural support, and — for eligible individuals — prescription weight loss medication (GLP-1 injections like Mounjaro or Wegovy). NHS weight management services offer specialist support across these approaches.
Should I try apple cider vinegar or speak to my GP about prescription weight loss?
If you're interested in weight management, speaking to your GP is the best first step. They can assess your individual health, discuss evidence-based options, and refer you to specialist NHS weight management services if appropriate. Prescription weight loss medication is far more effective than apple cider vinegar but requires clinical assessment and a prescription.
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.