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
High Protein Lunch Recipes For Weight Loss
High protein lunches are a practical way to support sustainable weight loss, helping you feel fuller for longer and maintain muscle mass during a calorie deficit. Protein-rich meals can be part of an effective weight management strategy in the UK, whether you're managing weight through diet and exercise alone or alongside prescription medication. This guide covers simple, evidence-based lunch ideas and explains how prescription weight loss options fit into your overall approach.
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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.
UK Prescription Weight Loss Options For Eligible Adults
If you're looking to lose weight in the UK, you have several evidence-based options available. For adults with a BMI of 30 or above, or 27 or above with weight-related health conditions like type 2 diabetes or high blood pressure, prescription weight loss medications may be eligible options.
- Mounjaro (tirzepatide) — dual GIP and GLP-1 receptor agonist. Clinical trials showed average weight loss of around 15–21% of body weight alongside reduced-calorie diet and physical activity.
- Wegovy (semaglutide) — GLP-1 receptor agonist. Once-weekly injection with average weight loss of approximately 15% in clinical trials.
- Saxenda (liraglutide) — daily GLP-1 injection, also licensed for weight management in the UK.
All three are prescription-only medicines requiring a clinical assessment. High protein nutrition remains important whether using medication or not — these medications work best alongside dietary improvements and increased physical activity.
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 Access Vs Private — How To Find Out If You're Eligible
In the UK, you can access prescription weight loss treatment through two routes. NHS access is through specialist tier 3 weight management services, typically requiring GP referral. Availability and waiting times vary significantly by region. Private access is available through GPhC-registered online prescribers following a remote clinical assessment — no NHS referral needed.
Start by speaking with your GP about your weight management goals. They can assess your eligibility, discuss your BMI and health conditions, and either refer you to NHS services or advise on private options. Use our free BMI calculator above to check your starting point, then speak with your healthcare provider about the best approach for you.
- 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 makes high protein lunches good for weight loss?
Protein increases satiety, helping you feel fuller after meals and reducing overall calorie intake. It also supports muscle preservation during weight loss and has a higher thermic effect than carbohydrates or fats, meaning your body uses more energy digesting it. High protein lunches are effective whether you're managing weight through diet alone or alongside GLP-1 medication like Mounjaro or Wegovy.
Can I use prescription weight loss medication alongside regular meals?
Yes. Medications like Mounjaro and Wegovy work best when combined with a balanced, reduced-calorie diet and increased physical activity. Prescription medication supports appetite regulation and helps create a calorie deficit, but dietary choices — including protein-rich lunches — remain essential for sustainable results.
How do I know if I'm eligible for prescription weight loss medication in the UK?
You may be eligible if you have a BMI of 30 or above, or 27 or above with weight-related health conditions such as type 2 diabetes, high blood pressure, or cardiovascular disease. Use our free BMI calculator on this page to check your BMI, then speak with your GP about eligibility and whether prescription options are appropriate for you.
What's the difference between NHS and private prescription weight loss treatment?
NHS access is through specialist weight management services (tier 3) following GP referral, with availability varying by region. Private access is through registered online prescribers with remote clinical assessment, available without NHS referral. Both require appropriate clinical assessment; costs and waiting times differ significantly.
Will prescription weight loss medication mean I don't need to eat healthy lunches?
No. Prescription medications support weight loss by helping regulate appetite and reduce cravings, but they work alongside — not instead of — healthy eating and physical activity. High protein lunches remain important for muscle preservation, sustained energy, and overall health outcomes. Medication is a tool that supports, not replaces, lifestyle changes.
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.