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
Meal Prep Recipes for Weight Loss Lunch
Meal prepping lunch is one of the most effective ways to support sustainable weight loss, especially when combined with a structured approach to calorie control. Planning and preparing meals in advance helps you avoid high-calorie takeaways and makes it easier to stick to a reduced-calorie diet — a cornerstone of successful weight management in the UK. Whether you're managing your weight through lifestyle changes alone or alongside prescription weight loss medication, having nutritious, satisfying lunch options ready to go makes consistency achievable. This guide shares practical meal prep lunch recipes designed to support your weight loss goals.
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.
Best Meal Prep Lunch Ideas for Weight Loss
Effective weight loss lunch recipes focus on three key elements: protein, fibre, and reasonable portion sizes. Protein keeps you feeling full longer, fibre supports digestion, and balanced portions naturally reduce overall calorie intake.
- Grilled chicken with roasted vegetables: 150g grilled chicken breast, mixed roasted veg (broccoli, peppers, carrots), olive oil drizzle. Approximately 350 kcal. Prep 4 portions on Sunday.
- Lentil and vegetable soup: Red lentils, carrots, celery, vegetable stock. High in fibre and plant protein. Approximately 280 kcal per serving.
- Tuna salad with wholegrain bread: Tinned tuna in spring water, mixed leaf salad, cherry tomatoes, one slice wholegrain bread. Approximately 320 kcal.
- Turkey meatballs with sweet potato: Lean turkey mince, herbs, baked sweet potato and green beans. Satisfying and nutrient-dense. Approximately 380 kcal.
The NHS recommends aiming for a calorie deficit of approximately 500 kcal per day to achieve sustainable weight loss of around 0.5–1 kg per week. Meal prepping removes the guesswork and helps you hit your targets 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.
Meal Prep Strategy for Weight Loss Success
Dedicate one evening or Sunday morning to batch-cook and portion your lunches for the entire week. Use microwave-safe containers and store in the fridge for up to 4 days, or freeze for longer storage. Keep ingredients simple: lean protein, colourful vegetables, and a modest amount of healthy fat.
Avoid high-calorie dressings and sauces — keep these separate and add sparingly. Drink water alongside your meal to increase satiety. If you're using the free BMI calculator on this page, you can assess your current weight management status and set realistic targets. For many people, combining structured meal prep with regular physical activity and consistent tracking delivers the best results. A food diary or progress tracker helps identify patterns and keeps you accountable to your weight loss goals.
- 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.
How many calories should my meal prep lunch contain?
For most adults aiming for weight loss, a lunch of 350–450 kcal is appropriate alongside a balanced breakfast and dinner. This typically creates the 500 kcal daily deficit the NHS recommends for sustainable loss of 0.5–1 kg per week. Individual targets vary — your GP can advise on calorie goals suited to your health.
Can I meal prep lunches for the entire month?
Refrigerated meal prep lunches stay fresh for 3–4 days. For longer storage, freeze portions in airtight containers for up to 3 months. Thaw in the fridge overnight before eating. This approach gives you flexibility while maintaining food safety and nutritional quality.
What if I'm using GLP-1 weight loss medication with meal prep?
Meal prepping works well alongside prescription weight loss medication like Mounjaro or Wegovy. Smaller, protein-rich portions support the appetite-reduction effects of these medications. Prepare lunches that are satisfying but easy to eat in smaller quantities. Always follow your prescriber's dietary guidance.
How do I avoid getting bored with meal prep lunches?
Rotate proteins (chicken, turkey, fish, lentils), vary your vegetables weekly, and experiment with different seasonings and sauces. Prep 2–3 different lunch recipes each week rather than eating the same meal five days running. This keeps meals interesting and ensures nutritional variety.
Should I count calories in my meal prep lunches?
Yes, calorie awareness supports weight loss. Use a food app or simple kitchen scales initially to understand portion sizes and calorie content. Most meal prep lunch recipes above provide approximate calorie counts. Consistent tracking, combined with regular use of the BMI calculator, helps you monitor progress and adjust as needed.
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.