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 Meal Prep Delivery in the UK
Meal prep delivery services in the UK offer convenient, portion-controlled meals designed to support weight loss goals. These services work alongside dietary changes, exercise, and sometimes prescription weight loss medication. Whether you're managing your weight through lifestyle alone or alongside GLP-1 medications like Wegovy or Mounjaro, structured meal delivery can help reduce decision fatigue around food choices and support a calorie deficit. This guide explains how meal prep services fit into a comprehensive weight management strategy and what to consider when choosing one.
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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 Prep Delivery Supports Weight Loss
Meal prep delivery services provide calorie-controlled, nutritionally balanced meals that simplify weight loss efforts. Instead of planning, shopping, and cooking, you receive pre-prepared meals at your door—reducing barriers to healthy eating and helping you maintain a consistent calorie deficit.
- Portion control: Pre-measured portions help prevent overeating and make calorie tracking straightforward
- Reduced decision fatigue: Fewer food choices mean less temptation and more consistency
- Nutritional balance: Most services include protein, vegetables, and complex carbohydrates in each meal
- Time savings: Eliminates meal planning, shopping, and cooking—freeing time for exercise and self-care
- Accountability: Regular deliveries create a structured eating pattern that supports sustainable weight management
The NHS acknowledges that a calorie deficit of approximately 500 kcal per day typically results in around 0.5 kg weight loss per week. Meal prep services make maintaining this deficit more manageable by removing guesswork from nutrition.
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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.
Meal Prep Delivery and Weight Loss Medication
If you're taking prescription weight loss medication like Wegovy or Mounjaro, meal prep delivery becomes even more valuable. These GLP-1 medications help reduce appetite and support feeling fuller after smaller meals—but structured nutrition ensures you're still getting adequate nutrients and stable energy levels.
Meal prep services provide the portion sizes and nutritional balance these medications work best with. Our free GLP-1 weight loss calculator can help you estimate potential results when combining medication with consistent nutrition. Remember, prescription weight loss treatment works most effectively when paired with dietary changes and increased physical activity. Always discuss meal planning with your GP or prescriber, especially if you're taking medication, as your nutritional needs may change.
- 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.
Can meal prep delivery services help me lose weight?
Yes, when combined with a calorie deficit. Meal prep services make it easier to maintain consistent portions and nutritional balance, which are essential for sustainable weight loss. However, weight loss also depends on overall calorie intake, physical activity, and individual factors. Our BMI calculator can help you understand your starting point and healthy weight targets.
Are meal prep deliveries suitable alongside Wegovy or Mounjaro?
Yes. These prescription GLP-1 medications work alongside reduced-calorie diets and increased physical activity. Meal prep services provide the portion sizes and nutritional consistency that complement these medications well. Always confirm with your prescriber that your meal plan provides adequate nutrients while taking medication.
How much does meal prep delivery cost in the UK?
Costs vary significantly by provider, meal complexity, and delivery frequency—typically ranging from £40–£100+ per week. Compare services based on calorie targets, dietary preferences (vegan, low-carb, etc.), and delivery coverage in your area. Factor in whether you're replacing all meals or just some.
What should I look for in a UK meal prep delivery service?
Choose services that clearly state calorie content per meal, offer variety to prevent boredom, accommodate dietary preferences, provide flexible delivery schedules, and source quality ingredients. Services that coordinate with NHS weight management guidelines or can accommodate GP recommendations are a plus. Read reviews from other UK users.
Do meal prep services replace the need for exercise and lifestyle changes?
No. The most effective weight loss combines structured nutrition, increased physical activity, and behavioural changes. Meal prep services are one tool—not a complete solution. The NHS recommends pairing any weight management approach with movement and sustainable habits for long-term success.
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.