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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Best Weight Loss Meal Delivery Services in the UK
Weight loss meal delivery services in the UK can be a practical way to support your weight management journey, offering pre-prepared meals that fit calorie targets and nutritional goals. However, meal delivery alone rarely achieves lasting weight loss without lifestyle changes and, for some people, medical support. If you're considering prescription weight loss medication like Mounjaro or Wegovy alongside a structured meal plan, understanding your overall options helps you make informed decisions. This guide covers the best meal delivery services available in the UK and how they complement different approaches to weight loss.
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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 Meal Delivery Supports Weight Loss
Weight loss meal delivery services remove the guesswork from calorie counting and meal planning. Most UK services offer calorie-controlled portions (typically 1,200–2,000 kcal/day) and provide nutrition information, making it easier to maintain a consistent deficit. The NHS recommends losing 0.5–1 kg per week, which generally requires a 500 kcal daily deficit alongside increased physical activity.
Key benefits include:
- Pre-portioned meals prevent overeating
- Time-saving — no meal prep required
- Variety and nutritional balance built in
- Flexibility to skip weeks or pause delivery
- Cost-effective compared to dining out
Popular UK services include Factor, Freshly, and HelloFresh, each offering different calorie tiers and meal choices. Some specialise in specific diets (Mediterranean, low-carb, high-protein). When combined with increased physical activity and behaviour change, meal delivery can be effective for weight management. For those pursuing prescription weight loss options, meal delivery complements medical treatment well — medications like Mounjaro or Wegovy work best alongside dietary support.
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.
NHS Weight Loss and Meal Delivery Integration
The NHS weight loss approach emphasises sustainable behaviour change rather than quick fixes. Meal delivery services align with this philosophy by helping you learn portion control and develop eating habits. However, NHS weight management services typically recommend structured programmes rather than relying on meal delivery alone.
If you're eligible for prescription weight loss medication through the NHS or privately, meal delivery can support your results. Medications like Mounjaro (tirzepatide) and Wegovy (semaglutide) are most effective when combined with dietary changes and physical activity — not instead of them. Our free GLP-1 weight loss calculator can help you estimate potential results if you're considering medication-supported weight loss. Use our BMI calculator above to check if prescription weight loss treatment might be appropriate for your situation, then discuss options with your GP.
- 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 weight loss meal delivery services worth the cost in the UK?
Yes, if they fit your budget. Most UK services cost £4–8 per meal. They save time on meal planning and grocery shopping, and prevent overeating by controlling portions. For some people, the convenience supports consistent weight loss. However, they're not a substitute for learning to cook and make healthy choices independently long-term.
Can I use meal delivery alongside Mounjaro or Wegovy?
Absolutely. Prescription weight loss medications work best alongside dietary support and increased physical activity. Meal delivery services complement these medications by providing structured, calorie-controlled meals. Always inform your prescriber about your overall approach — they may suggest adjusting portions as appetite naturally decreases with medication.
Which UK meal delivery service is best for weight loss?
The best service depends on your preferences and budget. Factor offers low-calorie options (1,200–1,500 kcal/day), Freshly provides balanced meals, and HelloFresh offers flexibility and variety. Look for services that clearly label calories and macronutrients, allow customisation, and align with your dietary preferences.
How much weight can I lose with meal delivery?
Weight loss depends on your calorie deficit, physical activity, metabolism, and individual factors. The NHS recommends losing 0.5–1 kg per week for sustainable results. Meal delivery can support this if portions create an appropriate deficit. Results vary significantly between individuals.
Should I use meal delivery instead of prescription weight loss medication?
Meal delivery and medication serve different roles. Meal delivery provides structure and portion control; prescription medications like Mounjaro or Wegovy help regulate appetite and support feeling fuller. For some people, meal delivery alone is effective. For others, medication alongside dietary changes produces better results. Your GP can advise which approach suits you.
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.