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 Cider Vinegar Help With Weight Loss?
Apple cider vinegar (ACV) is widely promoted as a weight loss aid, but the evidence is limited. While some small studies suggest it may have modest effects on appetite and blood sugar, there's no reliable proof that ACV alone causes meaningful weight loss. The NHS emphasises that sustainable weight loss comes from a calorie deficit combined with physical activity — not from individual foods or supplements. If you're looking to achieve a healthy weight for your height, our free BMI calculator can help you understand where you stand and what range is healthy for you.
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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 About Apple Cider Vinegar
Scientific research on apple cider vinegar for weight loss is limited and mixed. A small 2018 study found that participants taking ACV had modest reductions in body weight and waist circumference over 12 weeks, but the differences were minimal compared to a placebo group. Other research suggests that the acetic acid in vinegar may improve feelings of fullness and reduce appetite slightly, though effects are not dramatic.
Key points from the evidence:
- Effects on weight loss are small and inconsistent across studies
- Any appetite reduction is typically modest
- ACV does not "burn fat" or speed up metabolism in meaningful ways
- It works best when part of an overall reduced-calorie diet
- Typical doses in studies range from 1–2 tablespoons daily, diluted in water
- Risks include tooth enamel erosion and potential stomach upset if undiluted
The NHS recommends focusing on proven methods: eating fewer calories, increasing physical activity, and building sustainable lifestyle habits. Use our GLP-1 weight loss calculator if you're considering whether prescription weight management support might be appropriate for you.
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.
How Your Ideal Weight is Determined (Not by ACV)
Your healthy weight for your height is determined by your BMI (body mass index), which the NHS defines as a BMI between 18.5 and 24.9. Individual factors including age, muscle mass, frame size, and ethnicity all affect what a healthy weight range means for you personally. For adults of South Asian, Chinese, or Black African heritage, the NHS recommends lower BMI thresholds because these groups face higher health risks at lower weights.
Rather than chasing weight loss through supplements, the most effective approach is creating a calorie deficit of around 500 kcal per day — which typically results in losing approximately 0.5–1 kg per week. This combination of reduced calories and increased activity is backed by strong evidence. Use our weight converter to understand your current weight in UK measurements, then check your BMI to see where you stand against NHS healthy weight guidance.
- 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.
How much apple cider vinegar should I take daily for weight loss?
There is no scientifically proven safe or effective dose for weight loss. Studies typically used 1–2 tablespoons daily diluted in water. However, undiluted ACV can erode tooth enamel and cause stomach upset. The NHS does not recommend ACV as a weight loss treatment. Sustainable weight loss comes from a calorie deficit and increased physical activity.
Can apple cider vinegar replace diet and exercise for weight loss?
No. Apple cider vinegar cannot replace healthy eating and exercise. Weight loss requires a calorie deficit — you must burn more calories than you consume. ACV may have very mild appetite effects but is not a substitute for the proven methods of reducing calorie intake and increasing physical activity.
Does apple cider vinegar boost metabolism or burn fat?
There is no reliable evidence that apple cider vinegar boosts metabolism or burns fat meaningfully. While some research suggests it may slightly slow stomach emptying, this effect is very small. Metabolism is primarily determined by age, genetics, muscle mass, and activity level — not by vinegar consumption.
What is the NHS position on apple cider vinegar for weight loss?
The NHS does not recommend apple cider vinegar as a weight loss treatment. The NHS focuses on evidence-based methods: eating fewer calories, increasing physical activity, and making sustainable lifestyle changes. If you need support, NHS weight management services or prescription medications like Mounjaro or Wegovy may be appropriate options following clinical assessment.
What actually works for sustainable weight loss?
NHS-recommended methods include: creating a calorie deficit of 500 kcal daily for 0.5–1 kg weekly loss, increasing physical activity, eating balanced meals, and building sustainable habits. For eligible adults, prescription weight management medications can support these efforts. Use our free BMI calculator to check your healthy weight range for your height.
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.