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
Does Apple Vinegar Help With Weight Loss?
Apple vinegar is often claimed to aid weight loss, but the evidence for significant results is limited. Whilst some small studies suggest modest effects, the NHS emphasises that sustainable weight loss requires a calorie deficit, regular physical activity, and long-term lifestyle changes. If you're looking to lose weight in the UK, understanding what actually works—and what doesn't—is essential for setting realistic goals.
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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 Apple Vinegar?
Research on apple vinegar and weight loss remains inconclusive. A few small studies suggest acetic acid (the main active ingredient) may slightly reduce appetite or improve blood sugar control, but the effects are minimal—typically less than 1 kg over several weeks. Large-scale clinical trials comparing apple vinegar to placebo show only marginal differences.
- One small study found participants taking apple vinegar lost approximately 1.2 kg over 12 weeks alongside a calorie-restricted diet
- Blood sugar control may improve slightly in some people with type 2 diabetes
- The acid can damage tooth enamel and cause digestive upset in some users
- Weight loss is far more dependent on overall calorie intake than on any single food or supplement
The NHS does not recommend apple vinegar as a primary weight loss strategy. It is not a substitute for proven methods like weight management through balanced nutrition, increased physical activity, and behavioural change.
Clinically BackedWeight Loss
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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.
Effective, Evidence-Based Weight Loss in the UK
For sustainable weight loss in the UK, the NHS recommends a calorie deficit of approximately 500 kcal per day, resulting in weight loss of 0.5–1 kg per week. This can be achieved through diet, exercise, or a combination of both.
If lifestyle changes alone are not enough, your GP can refer you to specialist weight management services or discuss prescription weight loss medication. GLP-1 weight loss injections like Wegovy (semaglutide) and Mounjaro (tirzepatide) are now available through prescription weight loss pathways in the UK, with clinical trial data showing average weight loss of 15–21% of body weight when used alongside diet and exercise. Use our BMI calculator to understand your current weight category, and our GLP-1 weight loss calculator to explore potential results with medical support.
- 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 vinegar really help you lose weight?
Apple vinegar may have a very minor effect on appetite and blood sugar, but evidence is weak. Any weight loss is likely due to overall calorie reduction, not the vinegar itself. The NHS does not recommend it as a weight loss strategy.
How much apple vinegar should I drink for weight loss?
There is no established safe or effective dose for weight loss. Drinking undiluted apple vinegar can damage tooth enamel and cause digestive upset. If you choose to try it, dilute it in water, but do not expect significant results.
Is apple vinegar safe to drink every day?
Regular consumption of undiluted apple vinegar can erode tooth enamel, cause heartburn, and interact with certain medications. Always dilute it in water, and speak to your GP if you have digestive issues or take medications.
What's more effective than apple vinegar for weight loss?
Calorie deficit, regular physical activity, and behavioural changes are evidence-based. If lifestyle changes are not enough, your GP can discuss prescription weight loss medication or refer you to specialist weight management services available through the NHS.
Can apple vinegar and Wegovy or Mounjaro be used together?
Always speak to your prescriber before combining apple vinegar with any medication. Whilst generally safe together, vinegar may affect digestion and medication absorption. Your GP or prescriber can advise on what is safe for your individual situation.
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.