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
Good Breakfast Foods For Weight Loss
Starting your day with the right breakfast can significantly support your weight loss goals. A balanced, protein-rich breakfast helps stabilise blood sugar, reduces cravings later in the day, and supports feeling fuller for longer. Whether you're managing weight loss through lifestyle changes alone or alongside NHS weight loss support or prescription weight management medication, breakfast choices matter. This guide covers evidence-based breakfast foods that align with healthy weight management in the UK.
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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.
Best Breakfast Choices For Weight Loss
High-protein breakfasts are particularly effective for weight loss. Eggs (scrambled, boiled, or poached), Greek yoghurt, cottage cheese, and lean bacon all provide sustained satiety. Aim for at least 20–30g of protein at breakfast to help regulate appetite throughout the morning.
- Eggs: approximately 6g protein per egg, versatile, inexpensive
- Greek yoghurt: 10–20g protein per 100g serving, add berries for fibre
- Oats: soluble fibre reduces hunger, aim for steel-cut or rolled oats (not instant varieties with added sugar)
- Whole grain toast: with almond butter or hummus provides protein and sustained energy
- Berries: low calorie density, high in antioxidants and fibre
Avoid sugary cereals, pastries, and sweetened yoghurts—these spike blood sugar and often leave you hungry within 2 hours. If you're using weight loss medication like GLP-1 injections, a protein-focused breakfast alongside reduced portion sizes may help maximise your results.
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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.
Breakfast Timing And Portion Control
Eating breakfast within 1–2 hours of waking helps regulate appetite and energy levels throughout the day. Research consistently shows that skipping breakfast often leads to overeating later—particularly in the evening. Portion control matters: a healthy breakfast should be approximately 300–400 kcal for most adults aiming for weight loss.
Use our free BMI calculator to track where your current weight sits, and monitor progress with consistent breakfast habits over 4–6 weeks. Many people find that swapping a typical 600+ kcal fry-up for a 350 kcal protein-based breakfast creates a sustainable calorie deficit without feeling restricted. Pair smart breakfast choices with regular physical activity and you'll support steady, sustainable weight loss of approximately 0.5–1 kg per week—the NHS-recommended rate.
- 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's the best breakfast for weight loss on a low budget?
Eggs and oats are both inexpensive and highly effective. A breakfast of two scrambled eggs on wholemeal toast with a glass of water costs under £1 and provides around 25g protein. Porridge made with water or milk, topped with a handful of berries, is similarly affordable and filling. Budget doesn't need to limit healthy breakfast choices.
Can I skip breakfast and still lose weight?
Skipping breakfast often backfires. While you'll create a calorie deficit short-term, most people overeat at lunch and dinner, resulting in higher total daily calories. NHS guidance suggests eating regular meals including breakfast supports sustainable weight loss. Consistency matters more than skipping meals.
How does breakfast affect weight loss with GLP-1 medication?
GLP-1 medications like semaglutide (Wegovy) or tirzepatide (Mounjaro) reduce appetite, meaning you may feel satisfied with smaller portions at breakfast. A smaller, protein-rich breakfast aligns well with how these medications work. Always follow your prescriber's dietary guidance when using prescription weight loss medication.
Are eggs really good for weight loss despite the calories?
Yes. Although eggs contain approximately 70 kcal each, they're nutrient-dense and exceptionally satiating due to their protein content. Studies show people who eat eggs at breakfast eat fewer calories overall during the day compared to those eating equivalent-calorie carbohydrate breakfasts. The satiety effect more than compensates for the calories.
What if I'm not hungry in the morning?
Not feeling hungry at breakfast is normal for some people. If you're using GLP-1 weight loss medication, reduced appetite is expected and not a concern. If you're not using medication, try a small, light breakfast—even a handful of almonds and a banana—to prime your metabolism. Gradually increase breakfast size as appetite normalises.
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.