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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Apple Cider for Weight Loss — What Science Actually Shows
Apple cider vinegar is often promoted for weight loss, but the scientific evidence is limited and mixed. While some small studies suggest modest benefits, apple cider alone is not an effective weight loss solution. If you're looking for evidence-based weight management options in the UK, your GP can discuss prescription weight loss medication, lifestyle changes, and structured support through NHS weight loss programmes or specialist services. This guide explains what research shows about apple cider and points you towards proven approaches.
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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 Apple Cider and Weight Loss?
Clinical evidence for apple cider vinegar and weight loss is limited. A small 2018 study published in the Journal of Functional Foods found that vinegar consumption was associated with modest weight loss (around 1.2 kg over 12 weeks), but this was alongside calorie restriction and exercise—not due to the vinegar alone.
The proposed mechanism is that acetic acid (the active compound in apple cider vinegar) may slightly slow gastric emptying, helping you feel fuller for longer. However, the effect is minimal and inconsistent across studies. Most research involves very small sample sizes.
Key finding: Any weight loss from apple cider vinegar appears to be minor—far less than what you would achieve through sustained dietary changes, increased physical activity, or evidence-based weight management approaches. The NHS emphasises that sustainable weight loss requires a calorie deficit and lifestyle changes, not individual "superfoods" or supplements.
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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.
Evidence-Based Weight Management in the UK
If you're looking for effective weight loss support, the NHS recommends a structured approach: a balanced reduced-calorie diet, increased physical activity, and behavioural support. For adults with a BMI of 30 or above, or 27–29.9 with weight-related health conditions, prescription weight loss medication may be appropriate—assessed by your GP or a specialist weight management service.
Options include GLP-1 weight loss injections such as Wegovy (semaglutide), which clinical trials showed helps participants lose an average of around 15% of body weight, though individual results vary. These are prescription-only and require clinical assessment. Use our free GLP-1 weight loss calculator to explore potential outcomes, and our BMI calculator to assess your starting point for any weight management plan.
- 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.
Will apple cider vinegar help me lose weight?
Apple cider vinegar may have a very modest effect on appetite and digestion, but research shows minimal weight loss benefit—typically less than 1 kg over 12 weeks. Weight loss requires a calorie deficit and lifestyle changes. Apple cider alone is not an effective weight loss strategy. Speak to your GP about proven approaches.
What is the best apple cider vinegar for weight loss?
There is no "best" apple cider vinegar for weight loss because the evidence does not support apple cider vinegar as an effective weight loss tool, regardless of brand or type. Focus instead on calorie deficit, balanced nutrition, and physical activity—the cornerstones of sustainable weight loss.
How much apple cider vinegar should I drink daily for weight loss?
Studies using apple cider vinegar typically used 1–2 tablespoons daily diluted in water. However, consuming large amounts of vinegar can damage tooth enamel and may interact with certain medications. More importantly, the evidence for weight loss is too weak to recommend it. Consult your GP before adding vinegar supplements to your diet.
Is apple cider vinegar better than weight loss medication?
No. Clinical trials of prescription weight loss medications like Wegovy show weight loss of around 15% of body weight, compared to minimal effects from apple cider vinegar. If you meet NHS eligibility criteria (BMI 30+, or 27+ with health conditions), your GP can assess whether prescription medication is appropriate for you.
What actually works for weight loss in the UK?
Evidence-based weight loss includes: calorie deficit (around 500 kcal/day for 0.5 kg weekly loss), balanced diet, regular physical activity, and behavioural support. For eligible adults, prescription GLP-1 medications, NHS weight management programmes, and specialist tier 3 services offer structured support. Your GP can advise on the best 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.