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
Cheap Weight Loss Dinner Ideas That Work
Losing weight doesn't have to mean expensive meal plans or luxury ingredients. Simple, affordable dinners built around affordable protein sources, vegetables, and whole grains can support effective weight management across the UK. Whether you're managing weight through lifestyle changes alone or alongside prescription weight loss medication, eating well on a budget is absolutely achievable. The key is choosing affordable, nutrient-dense foods that keep you full and satisfied without excess calories.
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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.
Budget-Friendly Protein Sources for Weight Loss
Affordable protein is the foundation of cheap weight loss dinners. Eggs remain one of the lowest-cost protein sources — a large egg contains 6g protein for roughly 5p. Tinned beans (chickpeas, lentils, kidney beans) cost 25–50p per tin and deliver 8–12g protein plus fibre, which helps with satiety. Chicken thighs are usually cheaper than breasts and equally nutritious. Minced pork and beef can be stretched further by mixing with beans or lentils — this cuts cost while maintaining protein and adds fibre that supports weight management. Oats, peanut butter, and Greek yoghurt are also budget options with good protein-to-cost ratios.
- Eggs: 5–6g protein per egg, under 10p each
- Tinned beans: 8–12g protein per tin, budget-friendly and high in fibre
- Chicken thighs: cheaper than breasts, excellent protein and B vitamins
- Minced meat extended with lentils: stretches budget while maintaining nutrition
- Oats and peanut butter: versatile, shelf-stable, affordable protein options
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.
Budget Dinner Ideas: Practical Meal Examples
Here are genuinely cheap dinner ideas that support weight loss across the UK. Bean chilli made with tinned beans, onion, garlic, and tinned tomatoes costs under £2 per portion and delivers 15g protein plus fibre. Egg-fried rice using day-old rice, eggs, frozen vegetables, and soy sauce costs roughly £1.50 per serving. Lentil and vegetable curry with rice is filling, costs around £1 per portion, and high in plant-based protein. Oat-crusted chicken thighs with roasted root vegetables supports weight loss without premium pricing. Pasta e fagioli (pasta with beans) is a traditional budget meal that provides sustained fullness. Track portion sizes and calories using MyWeightCheck's free BMI calculator to understand how these meals fit into your weight management journey.
- 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 can I eat cheaply and still lose weight?
Focus on affordable staples: beans, lentils, eggs, chicken thighs, oats, and seasonal vegetables. These provide protein and fibre to keep you full on fewer calories. Buying tinned or dried rather than fresh, and cooking in batches, reduces cost significantly. A calorie deficit of around 500 kcal daily typically supports 0.5kg weekly loss — this is achievable on any budget.
Are cheap weight loss dinners nutritionally adequate?
Yes, if planned properly. Beans and lentils offer complete nutrition when combined with grains. Eggs provide all essential amino acids. Seasonal vegetables and frozen options (just as nutritious as fresh) add vitamins and minerals. The cost doesn't determine nutritional value — planning does.
How do weight loss injections fit with budget meal planning?
Medications like Mounjaro or Wegovy (semaglutide) work alongside dietary changes, not instead of them. Budget dinners remain essential whether you use prescription weight loss medication or rely on lifestyle changes alone. Both approaches benefit from affordable, protein-rich meals.
What's the cheapest vegetable for weight loss meals?
Frozen vegetables (peas, carrots, sweetcorn, broccoli) are often cheaper than fresh and equally nutritious. Seasonal vegetables vary by time of year but often cost less. Root vegetables like onions, carrots, and potatoes are consistently affordable. A mix of frozen and seasonal options keeps costs low while supporting nutrient intake.
Can I use cheap tinned foods for weight loss?
Yes, tinned beans, lentils, and tomatoes are excellent. Choose versions without added sugar or salt where possible — rinse tinned beans before use. Tinned fish like mackerel or sardines offers affordable omega-3 fatty acids. Tinned vegetables work well, though fresh or frozen often provide better value per portion.
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.