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
Mounjaro Recipe for Weight Loss — What You Need to Know
There's no "recipe" for Mounjaro—it's a prescription-only injectable medication, not a food or supplement. If you're searching for a weight loss recipe using Mounjaro, what you're really looking for is how to use this medication effectively alongside diet and lifestyle changes. Mounjaro (tirzepatide) is a weekly injection that may help support weight loss when combined with reduced-calorie eating and increased physical activity. This guide explains how it works, who can access it in the UK, and what realistic expectations are.
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.
How Mounjaro Works for Weight Loss
Mounjaro is a dual GIP and GLP-1 receptor agonist—a prescription-only weekly weight loss injection licensed in the UK. Unlike diet "recipes," it works by activating two natural hormone pathways in your body that regulate appetite and fullness.
- GLP-1 activation: Signals to your brain that you're full, reducing hunger and food cravings
- GIP activation: Enhances fat utilisation and appetite regulation (this is what makes Mounjaro different from Wegovy)
- Slowed digestion: Slows how quickly food leaves your stomach, helping you feel satisfied longer
Clinical trials showed that people taking Mounjaro (at 15 mg weekly) lost an average of approximately 20.9% of their body weight over 72 weeks—though individual results vary significantly. Crucially, Mounjaro is not a replacement for diet and exercise. It's a tool that works alongside a reduced-calorie diet and increased physical activity. Your prescriber will assess your eligibility based on your BMI and health profile.
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.
Getting Mounjaro in the UK and Using It Effectively
Mounjaro is available in the UK through two routes: NHS specialist tier 3 weight management services (via referral from your GP, though waiting lists vary) or private online prescribing (following a clinical assessment with a UK-licensed prescriber). The weekly weight loss injection comes in a pre-filled KwikPen device. Your prescriber will start you at 2.5 mg and gradually increase the dose over weeks, with a maximum of 15 mg weekly.
The real "recipe" for success is straightforward: take your weekly injection as prescribed, follow a structured reduced-calorie diet, increase your physical activity, and track your progress. Use our free GLP-1 weight loss calculator to estimate potential results at different doses, and our free BMI calculator to monitor your starting point and progress over time.
- 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 Mounjaro a food recipe or a medication?
Mounjaro is a prescription-only injectable medication—not a food, supplement, or recipe. It contains tirzepatide and works by activating appetite-regulating hormones. If you've searched for a "recipe," you're likely looking for guidance on using Mounjaro effectively with diet and lifestyle changes.
Can I buy Mounjaro without a prescription in the UK?
No. Mounjaro is prescription-only in the UK. You need a clinical assessment from a UK-licensed prescriber (either through NHS specialist services or private online prescribing) before it can be dispensed. Individual results and eligibility vary.
What should I eat while taking Mounjaro?
There's no special diet "recipe"—Mounjaro works best with any sustainable reduced-calorie diet you can stick to. Many people find Mediterranean or balanced whole-food approaches effective. Your GP or a registered dietitian can advise on a plan suited to your preferences and health needs.
How much weight can I expect to lose with Mounjaro?
Clinical trials showed average weight loss of approximately 15–21% of body weight, but individual results vary significantly. Factors include your starting weight, dose, diet quality, activity level, and genetics. Your prescriber can give personalised expectations based on your health profile.
Is Mounjaro the same as Ozempic or Wegovy?
No. Mounjaro (tirzepatide) is a dual GIP+GLP-1 agonist. Wegovy (semaglutide) is a GLP-1-only agonist. Ozempic also contains semaglutide but is licensed for type 2 diabetes, not weight loss in the UK. Each works differently and has different dose ranges and effects.
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.