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
Which Nuts Are Good For Weight Loss?
Nuts can be part of a healthy weight management UK approach when eaten in controlled portions — they're high in protein and healthy fats, which help you feel fuller for longer. However, nuts are calorie-dense, so portion control matters. Almonds, walnuts, and pistachios are among the best options. If you're looking to lose weight, combining sensible food choices with prescription weight loss medication may be an option worth discussing with your GP, especially if you have a BMI of 27 or above with weight-related health conditions.
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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.
Nuts For Weight Loss and UK Prescription Options
When it comes to nuts for weight loss, certain varieties offer better nutritional profiles. Almonds are high in protein and fibre, supporting satiety with around 6g protein per ounce. Walnuts contain omega-3 fatty acids linked to heart health and may help reduce appetite signalling. Pistachios are lower in calories than many other nuts and their shells slow eating pace, naturally limiting intake.
However, nuts are calorie-dense — a handful can easily contain 150–200 kcal. For sustainable weight loss, the NHS recommends a calorie deficit of around 500 kcal daily, typically resulting in 0.5kg per week loss. For adults struggling with weight management UK despite dietary changes, prescription options exist. Mounjaro (tirzepatide) and Wegovy (semaglutide) are GLP-1 receptor agonist medications licensed in the UK that work alongside lifestyle changes, not instead of them. Clinical trials showed average weight loss of 15–21% with Mounjaro and approximately 15% with Wegovy — though individual results vary significantly.
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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.
How To Access Weight Loss Medication in the UK
If you're interested in prescription weight loss medication, eligibility depends on your BMI and health profile. Adults with a BMI of 30 or above, or 27 or above with weight-related conditions (such as type 2 diabetes, high blood pressure, or sleep apnoea), may qualify. Access routes include NHS specialist weight management services — referral from your GP — or private prescribing through UK-licensed online providers following a clinical assessment.
NHS access involves waiting for a tier 3 specialist service appointment, which varies by region. Many adults choose private prescribing for faster access. Whichever route, a qualified prescriber will assess your suitability individually. Use our free GLP-1 weight loss calculator to explore potential outcomes at different doses, and discuss your options with your GP to find the right approach for your weight management goals.
- 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.
Are nuts good for weight loss?
Nuts can support weight loss as part of a balanced diet — they're high in protein and healthy fats, promoting fullness. However, they're calorie-dense, so portion control is essential. A small handful (about 28g or 1 ounce) is typically the recommended serving. Almonds, walnuts, and pistachios are particularly good choices for weight management.
Can I eat nuts while taking Mounjaro or Wegovy?
Yes, you can eat nuts while taking GLP-1 weight loss medication. Many people find that medications like Mounjaro and Wegovy naturally reduce appetite, making portion control easier. However, some people experience nausea or reduced appetite on these medications, which may affect food choices. Always discuss dietary questions with your prescriber or a registered dietitian.
How many nuts should I eat for weight loss?
The NHS recommends limiting nuts to about 30g (a small handful) per day as part of a calorie-controlled diet. This portion provides around 150–180 kcal depending on the nut type. For sustainable weight loss, focus on creating an overall calorie deficit of approximately 500 kcal daily, which typically results in losing around 0.5kg per week.
What's the difference between Mounjaro and Wegovy for weight loss?
Both Mounjaro and Wegovy are GLP-1-based prescription weight loss medications licensed in the UK. Mounjaro is a dual GIP/GLP-1 agonist with slightly higher average weight loss outcomes (15–21%) compared to Wegovy (approximately 15%). Both are once-weekly injections. Eligibility and suitability depend on your individual health profile — your GP or a prescriber can advise which is appropriate for you.
How do I find out if I'm eligible for weight loss medication in the UK?
You're potentially eligible for prescription weight loss medication if you have a BMI of 30 or above, or 27 or above with weight-related health conditions like diabetes or high blood pressure. Start by discussing your weight management options with your GP, who can refer you to NHS specialist services or advise on private prescribing options. Our free BMI calculator can help you check your starting point.
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.