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
Is Milk Good For Weight Loss?
Milk can play a supportive role in a balanced weight loss approach, though it's not a weight loss solution on its own. Whether dairy helps depends on the type of milk you choose, portion sizes, and how it fits into your overall calorie intake. For meaningful weight management in the UK, many adults combine dietary changes with prescription weight loss medication if eligible. This guide covers milk's role in weight loss and explores NHS and private weight management options available to you.
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.
Milk and Weight Loss: What the Evidence Shows
Milk contains protein, calcium, and B vitamins that support overall health, but weight loss ultimately depends on total calorie intake rather than any single food. Some studies suggest that dairy protein may help you feel fuller for longer, which can support eating fewer calories overall—but individual results vary widely.
Different milk types have different calorie and nutrient profiles:
- Whole milk: approximately 64 calories and 3.2g fat per 100ml
- Semi-skimmed milk: approximately 49 calories and 1.8g fat per 100ml
- Skimmed milk: approximately 32 calories and 0g fat per 100ml
- Plant-based alternatives: varies by type (oat, almond, soy)—typically 30–50 calories per 100ml
For effective weight management, the NHS emphasises that sustainable weight loss comes from a calorie deficit alongside increased physical activity. Milk can be part of this approach if portions are measured, but it's not a standalone weight loss tool.
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.
UK Weight Loss Options for Eligible Adults
If you have a BMI of 30 or above, or 27–29.9 with weight-related health conditions such as type 2 diabetes or high blood pressure, you may be eligible for prescription weight loss medication in the UK. These options include Mounjaro (tirzepatide) and Wegovy (semaglutide)—both licensed GLP-1 medications that may help reduce appetite and support weight management alongside dietary changes.
Access is available through NHS specialist weight management services or private online prescribing following a clinical assessment. Calculate your BMI using our free BMI calculator above to see if you might meet eligibility criteria. Your GP can provide personalised advice about whether prescription weight loss treatment is suitable for you, or you can explore private options through a licensed prescriber.
- 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 drinking milk help me lose weight?
Milk can support weight loss as part of a balanced diet due to its protein content, which may help you feel fuller longer. However, weight loss ultimately depends on overall calorie intake and physical activity. Measuring portions and choosing lower-fat options like semi-skimmed or skimmed milk can help keep calories in check while maintaining dairy's nutritional benefits.
Which type of milk is best for weight loss?
Semi-skimmed or skimmed milk contains fewer calories than whole milk (around 49 and 32 calories per 100ml respectively) while retaining protein and calcium. Plant-based alternatives like unsweetened almond or oat milk are also low-calorie options. Choose whichever fits your preferences and dietary needs—the best option is one you'll stick with consistently.
Is prescription weight loss medication available on the NHS in the UK?
Yes. Mounjaro and Wegovy are licensed for weight management in UK adults with a BMI of 30 or above, or 27–29.9 with weight-related health conditions. Access is typically through NHS specialist tier 3 weight management services via GP referral, though availability and waiting times vary by region. Private options are also available through licensed prescribers.
What's the difference between Mounjaro and Wegovy for weight loss?
Both are once-weekly injections, but Mounjaro (tirzepatide) is a dual GIP and GLP-1 receptor agonist, while Wegovy (semaglutide) is a GLP-1 agonist only. Clinical trials showed Mounjaro users lost an average of 15–21% of body weight, while Wegovy users lost approximately 15%. Individual results vary, and eligibility is assessed on a personal basis by a prescriber.
How do I find out if I'm eligible for prescription weight loss treatment in the UK?
Start by calculating your BMI using our free BMI calculator on this page. If your BMI is 30 or above (or 27–29.9 with weight-related conditions), speak with your GP about referral to specialist weight management services. Private clinics also offer online assessments. A licensed prescriber will assess your individual health and eligibility before any medication is prescribed.
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.