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 Meals and Recipes for UK Adults
Planning healthy weight loss meals is one of the most practical ways to support sustainable weight loss. The NHS recommends losing weight through a combination of reduced-calorie meals and increased physical activity — rather than extreme restriction. This guide covers evidence-based meal planning, recipe ideas, and nutritional principles to help you make healthier food choices as part of your weight management journey. Whether you're managing weight through lifestyle changes alone or alongside prescription weight loss medication, eating balanced, satisfying meals makes the process more sustainable long-term.
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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.
Key Principles for Weight Loss Meals
Sustainable weight loss typically involves a calorie deficit of around 500 kcal per day, which translates to losing approximately 0.5 kg per week according to NHS guidance. Rather than severe restriction, aim for balanced meals that keep you satisfied:
- Protein at every meal — chicken, fish, eggs, beans, lentils, tofu — helps you feel fuller for longer and supports muscle retention during weight loss
- Fibre-rich foods — vegetables, whole grains, legumes — add volume to meals without excess calories and aid digestion
- Controlled portion sizes — use smaller plates, measure portions initially, and consider using our free BMI calculator to understand your personal healthy weight range as a goal
- Limit ultra-processed foods — these tend to be calorie-dense and less satisfying than whole foods
- Stay hydrated — sometimes thirst is mistaken for hunger; aim for 6–8 glasses of water daily
The key is finding an eating pattern you can maintain, not a temporary diet. Evidence from NHS weight management programmes shows that people who lose weight gradually through balanced eating maintain results better than those who follow extreme restrictions.
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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.
Practical Weight Loss Meal Ideas
Here are simple, budget-friendly meal ideas aligned with UK nutrition guidance:
- Breakfast: Porridge with berries and a spoon of Greek yoghurt; scrambled eggs on wholemeal toast with tomatoes; vegetable omelette with side salad
- Lunch: Grilled chicken breast with brown rice and steamed broccoli; lentil soup with wholemeal bread; tuna salad with mixed leaves and olive oil dressing
- Dinner: Baked salmon with sweet potato and green beans; lean mince bolognese with courgette noodles; chickpea curry with cauliflower rice
- Snacks: Apple with almond butter; Greek yoghurt; hummus with carrot sticks; small handful of nuts
If you're taking prescription weight loss medication like GLP-1 injections, you may find meal planning even more important — these medications work best alongside reduced-calorie, balanced eating. Our GLP-1 weight loss calculator can help you understand realistic weight loss timelines when combined with healthy meals.
- 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.
What is the best type of meal plan for weight loss in the UK?
The NHS recommends calorie-reduced, balanced meals rather than extreme diets. A sustainable approach combines lean protein, whole grains, plenty of vegetables, and controlled portions. The goal is typically a deficit of around 500 kcal per day, resulting in roughly 0.5 kg weight loss per week. The best plan is one you can stick to long-term.
How many calories should I eat per day to lose weight?
This varies by individual, but most UK adults aim for 1,200–1,500 kcal per day for weight loss. Your GP or a registered dietitian can give personalised guidance based on your height, current weight, and activity level. Very low-calorie diets (under 800 kcal) should only be done under medical supervision.
Can I lose weight with meal planning alone or do I need medication?
Meal planning and physical activity can absolutely lead to weight loss — many people achieve this through lifestyle changes alone. However, if you're struggling despite sustained effort, your GP can discuss prescription weight loss options. Medications like GLP-1 injections work best alongside balanced eating, not instead of it.
Are there specific foods I should avoid for weight loss?
Rather than "avoid", it's better to limit ultra-processed foods, sugary drinks, and high-calorie snacks. You don't need to eliminate any food group — the key is portion control and balance. Include protein, fibre, and vegetables at most meals to stay satisfied on fewer calories.
How can I track whether my meal plan is working?
Regular weigh-ins (weekly), noting how clothes fit, and energy levels all indicate progress. Remember that weight can fluctuate by 1–2 kg day-to-day due to water retention and digestion. Our free progress tracker allows you to log weight changes over time and spot longer-term trends beyond daily variation. ```
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.