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
Eggs in Breakfast for Weight Loss — UK Health Guide
Eggs are a nutrient-dense breakfast choice that can support weight loss efforts. High in protein and relatively low in calories, eggs help you feel fuller for longer, which may reduce overall calorie intake throughout the day. In the UK, weight loss approaches typically combine dietary strategies—like including protein-rich foods—with lifestyle changes and, when appropriate, prescription weight management options. If you're looking at comprehensive weight loss strategies, understanding both nutrition and available UK weight management options is essential.
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.
UK Prescription Weight Loss Options Available
For adults struggling with weight management, the UK offers several prescription-only medication options alongside dietary approaches like including eggs in breakfast. Mounjaro (tirzepatide) is a dual GIP and GLP-1 receptor agonist administered once weekly, helping regulate appetite and support feeling fuller after meals. Wegovy (semaglutide) is a GLP-1 receptor agonist also given once weekly. Saxenda (liraglutide) is a daily GLP-1 injection option.
These medications may be prescribed to UK adults with a BMI of 30 or above, or 27–29.9 with weight-related health conditions such as type 2 diabetes, high blood pressure, or cardiovascular disease. Clinical trials showed participants on these medications lost an average of 15–21% of body weight—though individual results vary significantly. Prescription weight loss medications are always used alongside a reduced-calorie diet and increased physical activity, not as a replacement for lifestyle changes.
Try our free GLP-1 weight loss calculator above to explore potential weight loss scenarios at different medication doses, and use our BMI calculator to assess your current health metrics.
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 vs Private Access — How to Start
In the UK, prescription weight loss medication is available through two routes. NHS access requires referral to a specialist tier 3 or tier 4 weight management service—typically from your GP. NHS availability varies significantly by region, and waiting lists can be lengthy in many areas. Private access is available through GPhC-registered online pharmacies following a clinical assessment with a UK-licensed prescriber, without requiring an NHS referral.
If you're interested in exploring whether prescription weight loss treatment is suitable for you, start by speaking with your GP about your weight loss goals and overall health. Your GP can assess your eligibility based on your BMI and health conditions, discuss available options, and either refer you to NHS services or advise on private options. Use the weight converter and progress tracker on this site to monitor your current weight and set realistic targets. A healthcare professional can provide personalised guidance on combining nutrition strategies—like protein-rich breakfasts with eggs—and medication options tailored to your needs.
- 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.
Do eggs really help with weight loss?
Eggs are protein-rich and support satiety, helping you feel fuller longer after eating. This may reduce overall calorie intake, supporting weight loss when combined with a calorie deficit. However, weight loss requires a consistent energy deficit—eggs are one component of a broader healthy eating plan. Individual results vary based on overall diet, activity level, and metabolism.
Can I use eggs for weight loss without medication?
Yes. Many people achieve weight loss through dietary changes like including protein-rich foods such as eggs, alongside increased physical activity and a calorie deficit. However, if you have a BMI of 30 or above, or 27–29.9 with weight-related health conditions, prescription weight loss medication may be an option worth discussing with your GP.
What prescription weight loss medications are available in the UK?
Mounjaro (tirzepatide), Wegovy (semaglutide), and Saxenda (liraglutide) are prescription-only weight loss medications licensed in the UK. All require a clinical assessment before prescription. Mounjaro and Wegovy are once-weekly injections; Saxenda is a daily injection. Eligibility depends on BMI and health factors.
How do I find out if I'm eligible for NHS weight loss medication?
Speak with your GP about your weight loss goals and medical history. Your GP can assess your BMI and weight-related health conditions to determine if you meet NHS eligibility criteria. If eligible, you'll be referred to a specialist weight management service. Availability varies by region. Private options may be faster to access.
Should I combine prescription medication with dietary changes like eating eggs?
Yes. Prescription weight loss medications work most effectively alongside a reduced-calorie diet and increased physical activity. Protein-rich foods like eggs support satiety and can be part of your overall nutrition strategy. Speak with a healthcare professional about creating a comprehensive plan combining medication, nutrition, and lifestyle changes for sustainable weight loss.
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.