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
Is Boiled Rice Good for Weight Loss?
Boiled rice can be part of a weight loss diet, but portion size and overall calorie intake matter most. Whilst boiled rice is lower in calories than fried versions and contains resistant starch when cooled, weight loss ultimately depends on creating a calorie deficit. For many UK adults struggling with weight management, combining dietary changes with evidence-based approaches—including prescription weight loss medication where eligible—offers the best chance of success. Our BMI calculator can help you understand your current weight status and whether you might benefit from professional support.
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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.
Prescription Weight Loss Options Available in the UK
For UK 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 medication is now available. Three medicines are currently licensed for weight management in the UK:
- Mounjaro (tirzepatide) — dual GIP and GLP-1 receptor agonist, once weekly injection. Clinical trials showed participants lost an average of 15–21% of their body weight over 72 weeks, alongside dietary changes and increased physical activity.
- Wegovy (semaglutide) — GLP-1 receptor agonist, once weekly injection. Evidence from the STEP trials demonstrated approximately 15% average weight loss at the maximum dose.
- Saxenda (liraglutide) — GLP-1 receptor agonist, once daily injection. Results show modest but significant weight loss compared to diet alone.
These medications work by reducing appetite, promoting fullness, and helping regulate blood sugar. Individual results vary significantly—weight loss injections are most effective when combined with dietary changes like boiled rice portions, increased physical activity, and behaviour change. Always note that weight loss medication requires a prescription following clinical assessment.
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 Get Started
In the UK, prescription weight loss medication is available through two routes. NHS access requires referral to a specialist tier 3 weight management service—waiting times vary by region and can be lengthy. Private access is available through licensed online prescribers following an online consultation; eligibility is assessed individually and medication is dispensed by GPhC-registered pharmacies.
Start by speaking to your GP about whether weight management medication might be appropriate for you. They can assess your BMI, health conditions, and current lifestyle. Try our free GLP-1 weight loss calculator to see potential outcomes at different doses—this can help inform your conversation with your prescriber. Combining prescription support with sustainable dietary choices, portion control, and regular activity offers the strongest foundation for lasting weight loss.
- 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.
Is boiled rice really good for weight loss compared to other carbs?
Boiled rice is relatively low in calories (130 kcal per 100g cooked) and can be part of a weight loss diet. White rice has a higher glycaemic index, whilst brown rice offers more fibre. However, portion size is crucial—weight loss depends on total calorie deficit, not just choosing "good" foods. Using our weight converter and BMI calculator can help you track progress alongside dietary changes.
Can boiled rice alone help me lose weight?
No. Boiled rice alone won't cause weight loss without a calorie deficit. You need to eat fewer calories overall, increase physical activity, and maintain consistency. For many UK adults, combining dietary changes with professional support—including prescription medication if eligible—produces better results than food choices alone.
Who is eligible for prescription weight loss medication in the UK?
Adults with a BMI of 30 or above are generally eligible. Those with a BMI of 27–29.9 may qualify if they have weight-related health conditions like type 2 diabetes, high blood pressure, or sleep apnoea. Eligibility is assessed individually by a prescriber or specialist. Your GP can advise whether you meet criteria.
What's the difference between Mounjaro and Wegovy for weight loss?
Mounjaro (tirzepatide) is a dual GIP and GLP-1 agonist with slightly higher average weight loss (~15–21%) in trials. Wegovy (semaglutide) is a GLP-1 agonist only (~15% average loss). Both are once-weekly injections requiring prescription and clinical assessment. Individual response varies significantly.
Can I use weight loss medication alongside diet changes like eating boiled rice?
Yes. Prescription weight loss medications work best alongside reduced-calorie diet and increased physical activity. Boiled rice can be part of a balanced, calorie-controlled diet. Your prescriber will advise on how to combine medication with lifestyle changes for optimal results. Track your progress using our free progress tracker.
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.