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
Which Is The Best Milk For Weight Loss?
When you're working on weight management in the UK, every dietary choice matters — including milk. The best milk for weight loss depends on your calorie goals, nutritional needs, and personal preferences. Skimmed and semi-skimmed dairy milk are lower in fat and calories than full-fat options, while plant-based alternatives like oat and almond milk offer different nutritional profiles. Understanding the differences helps you make informed choices that support sustainable weight loss alongside a balanced diet and increased physical activity.
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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.
Comparing Milk Types For Weight Loss
Skimmed milk contains approximately 49 calories per 100ml with minimal fat and high protein — making it popular for nhs weight loss programmes and calorie-controlled diets. Semi-skimmed milk has around 49 calories per 100ml and offers a balance between satiety and calorie content. Full-fat milk (approximately 61 calories per 100ml) provides more calories and fat but increases satiety, meaning you may eat less overall.
Plant-based alternatives vary significantly: unsweetened almond milk is approximately 30 calories per 100ml (lowest calorie option), oat milk is around 45 calories per 100ml, and coconut milk can be 17–20 calories per 100ml unsweetened. However, many commercial versions contain added sugars — always check the label.
- Choose unsweetened versions of plant-based milks to avoid hidden sugars
- Skimmed and semi-skimmed dairy milk offer the highest protein content for satiety
- Full-fat milk, though higher in calories, may support feeling fuller longer
- Individual preference matters — sustainability of choice beats minimal calorie differences
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.
What Matters Beyond Milk Type
The milk you choose is one small part of weight management. Total daily calorie intake matters far more than switching milk alone — a reduction of 500 calories per day typically supports losing approximately 0.5 kg per week alongside increased physical activity.
For prescription weight loss medication, such as glp-1 weight loss injections, dietary choices including milk type can support medication effectiveness. If you're considering weight loss medication through the nhs or privately, your prescriber will discuss dietary changes alongside treatment.
Use our free BMI calculator above to understand your personal weight context, and track your dietary progress with our free progress tracker to see what works for your weight loss journey.
- 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.
Which milk has the lowest calories for weight loss?
Unsweetened coconut milk and almond milk are the lowest-calorie options at approximately 17–30 calories per 100ml. However, skimmed dairy milk (49 calories per 100ml) offers significantly higher protein, which supports satiety and may be more effective for sustainable weight loss despite slightly higher calories.
Is semi-skimmed or skimmed milk better for weight loss?
Both are similar in calories (approximately 49 calories per 100ml). Skimmed milk has slightly more protein, while semi-skimmed retains a touch more flavour and fat-soluble vitamins. Choose based on personal preference — the milk you'll consistently drink is the better choice.
Can I drink full-fat milk and still lose weight?
Yes. Full-fat milk (approximately 61 calories per 100ml) is higher in calories but increases satiety, meaning you may eat less overall. Weight loss depends on total calorie intake, not on eliminating any single food. Fit full-fat milk into your daily calorie goal if it helps you feel satisfied.
Are plant-based milks better for weight loss than dairy milk?
Not necessarily. Unsweetened plant-based milks are lower in calories but also lower in protein. Dairy milk, particularly skimmed or semi-skimmed, offers better satiety. Choose based on tolerance, preference, and how well it fits your calorie targets — sustainability matters more than the milk type itself.
Does milk choice matter if I'm taking weight loss medication?
Milk choice is a minor part of weight management, whether using prescription weight loss medication or lifestyle changes alone. Focus on total calorie intake, protein intake, and consistency. If you're considering prescription weight loss medication through weight management uk services, discuss all dietary questions with your prescriber during assessment.
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.