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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Weight Loss Prepared Meals Delivery in the UK
Prepared meal delivery services have become a popular way for UK adults to support weight loss by removing the guesswork from meal planning and calorie counting. These services deliver pre-portioned, nutritionally balanced meals to your home, making it easier to maintain a calorie deficit without spending hours on food preparation. When combined with increased physical activity and other weight management strategies, meal delivery can be part of a sustainable approach to losing weight and improving your health.
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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.
How Prepared Meals Support Weight Loss
Prepared meal delivery services work by providing calorie-controlled, portion-sized meals that remove uncertainty from your diet. Each meal typically lists its nutritional content—calories, protein, carbohydrates, and fat—making it simple to track your intake and maintain the calorie deficit needed for weight loss.
- Portion control: Pre-portioned meals prevent overeating, which is one of the biggest barriers to weight loss
- Reduced decision fatigue: No daily meal planning means you're less likely to make impulsive food choices
- Convenience: Meals arrive ready to reheat, reducing reliance on takeaways or high-calorie convenience foods
- Nutritional balance: Most services include vegetables, lean protein, and complex carbohydrates in every meal
The NHS recommends losing weight at a rate of 0.5 to 1 kg per week for sustainable results. A calorie deficit of around 500 kcal per day typically achieves this. Prepared meals help you maintain this deficit consistently.
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.
Choosing the Right Meal Delivery Service
When selecting a prepared meal service for weight management in the UK, look for providers that offer transparent calorie labelling, flexible meal choices, and support for your dietary preferences. Services vary widely in cost, meal variety, and delivery frequency—choose one that fits your budget and lifestyle.
Check whether the service offers different calorie tier options (for example, 1,500 kcal, 1,800 kcal, or 2,000 kcal daily targets) so you can adjust as your weight loss progresses. Some services also provide nutrition guidance or partner with registered dietitians. For personalised advice about your calorie targets and weight loss plan, speak to your GP or a weight management specialist. You can also track your progress using our free progress tracker to monitor weight changes over time.
- 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.
Are prepared meal delivery services an alternative to GLP-1 weight loss medication?
Meal delivery and GLP-1 medication work differently. Meal delivery helps you control calories and portions; GLP-1 medications (like Wegovy or Mounjaro) work by reducing appetite and food cravings. Both are most effective when combined with dietary changes and physical activity. Neither replaces the other—some people use both. Your GP or a weight management specialist can advise which approach is right for you.
How much weight can you lose using prepared meals?
Weight loss depends on your starting point, the calorie deficit you create, and how consistently you follow the plan. The NHS recommends losing 0.5 to 1 kg per week as sustainable. With a prepared meal service providing a 500 kcal daily deficit plus exercise, you might expect to lose around 0.5 kg weekly. Individual results vary significantly. Use our free BMI calculator and progress tracker to monitor your journey.
Do prepared meal services work with the NHS weight loss programme?
The NHS Weight Loss Plan and tier 3 specialist weight management services do not require prepared meals—they recommend standard healthy eating and physical activity. However, you can use a meal delivery service alongside NHS support if you wish. Your GP can advise whether it's appropriate for your circumstances.
What's the cost of prepared meal delivery in the UK?
Costs typically range from £3 to £8 per meal (£60–£160 per week for a 5-day delivery), depending on the service and meal type. This is often comparable to or less than eating out regularly. Many services offer discounts for longer commitments or weekly subscriptions.
Can you use prepared meals with weight loss injections?
Yes. Prepared meal services can complement weight loss injections by making it easier to maintain the calorie deficit and portion control needed for results. GLP-1 medications like semaglutide (Wegovy) or tirzepatide (Mounjaro) help reduce appetite; prepared meals remove planning effort. Together, they support sustainable weight management. Try our free GLP-1 weight loss calculator to estimate potential results with medication alongside dietary changes.
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.