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
How Much Apple Cider Vinegar For Weight Loss?
Apple cider vinegar (ACV) is often claimed to aid weight loss, but the evidence is limited and most studies show modest effects at best. In the UK, the NHS recommends focusing on proven methods: a balanced diet, physical activity, and a calorie deficit. Before adding ACV to your routine, it's worth understanding what the evidence actually shows and whether it's suitable for you. Your ideal weight for your height is best determined using your BMI — use our free BMI calculator above to find your personal healthy weight range.
10,000+ calculations today · NHS-aligned thresholds · 100% free
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 ACV And Weight Loss?
Most scientific evidence on apple cider vinegar and weight loss comes from small studies with mixed results. A few studies suggest that acetic acid (the main active ingredient in ACV) may help with modest weight loss or fat storage, but the effects are typically very small — often less than 1 kg over several weeks. The NHS does not currently recommend ACV as a primary weight loss strategy.
What studies have found:
- Some evidence suggests acetic acid may slightly improve insulin sensitivity
- ACV may increase feelings of fullness, potentially reducing calorie intake
- Effects are generally modest and require consistent use alongside diet and exercise
- No evidence that ACV alone causes significant weight loss
The reality is that sustainable weight loss depends on creating a calorie deficit through diet and physical activity. ACV might play a small supporting role, but it is not a substitute for lifestyle changes. Your healthy weight for your height can be determined using our BMI calculator — knowing your target healthy weight range is far more useful than relying on any single supplement.
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.
Safe ACV Dosage And Potential Risks
If you decide to try apple cider vinegar, typical recommendations range from 1–2 tablespoons (15–30ml) diluted in water, taken once or twice daily. Always dilute ACV before consuming — drinking undiluted vinegar can damage tooth enamel and irritate your throat.
Who should avoid ACV:
- People taking diabetes medications (ACV may affect blood sugar)
- Those with digestive issues like acid reflux or gastroparesis
- Anyone with tooth decay or enamel erosion
- People on certain medications — always check with your GP first
The most effective approach to weight loss is creating a realistic calorie deficit alongside increased physical activity. Use our free progress tracker to log your weight loss journey, and speak to your GP if you're considering significant dietary changes.
- 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 actually help you lose weight?
Evidence suggests ACV may have very modest effects on weight loss, likely through improved satiety and slight metabolic effects. However, studies show weight loss is typically minimal — less than 1 kg over several weeks — and ACV is not an effective standalone weight loss solution. The NHS emphasises that sustainable weight loss requires a calorie deficit through diet and exercise.
How much ACV should I drink daily for weight loss?
If you choose to use ACV, typical recommendations are 1–2 tablespoons (15–30ml) diluted in water, once or twice daily. Always dilute it to protect your teeth and digestive system. However, there is no proven "optimal" dose for weight loss, and more ACV does not mean better results.
Can ACV help if I'm overweight or obese?
ACV alone is unlikely to result in meaningful weight loss if you're overweight or obese. A sustainable approach requires a calorie deficit, physical activity, and often behaviour change support. Use our BMI calculator to find your healthy weight range, and speak to your GP about evidence-based weight management strategies.
Is apple cider vinegar safe to take every day?
Diluted ACV is generally safe for most people in moderation, but daily use can damage tooth enamel and may affect blood sugar control. If you take diabetes medications, have digestive issues, or are pregnant, consult your GP before using ACV regularly.
What's more effective than ACV for weight loss?
Proven methods include creating a calorie deficit (typically 500 kcal/day for 0.5 kg weekly loss), regular physical activity, eating whole foods, and addressing behaviour patterns around eating. For some people, prescription weight loss medications prescribed by a GP or specialist may be appropriate. Track your progress with our free tool to stay motivated.
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.