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
Best Weight Loss Training Program for UK Adults
Finding the best weight loss training program depends on your current fitness level, health status, and lifestyle. The most effective approach combines regular physical activity with dietary changes and, where appropriate, medical support. The NHS recommends aiming for sustainable weight management uk practices rather than crash diets or extreme exercise routines. Our free BMI calculator can help you establish your starting point, and understanding your personal health context will guide which training programme is right for you.
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.
Evidence-Based Exercise and Training for Weight Loss
The best weight loss training programs include a mix of cardiovascular exercise, strength training, and flexibility work. The NHS weight loss guidance recommends at least 150 minutes of moderate-intensity aerobic activity per week, plus two sessions of strength training.
- Cardio training: Walking, cycling, swimming, and running burn calories and improve heart health
- Strength training: Building muscle increases your resting metabolic rate, helping your body burn more calories throughout the day
- Flexibility and balance: Yoga and pilates improve mobility and reduce injury risk
- Progressive overload: Gradually increasing intensity prevents plateaus and maintains engagement
Most evidence suggests that consistency matters more than intensity — a sustainable training program you'll actually follow beats an intense programme you abandon after three weeks. Start with 3–4 sessions per week and build from there. Track your progress using our free progress tracker to monitor improvements in both fitness and weight management.
Clinically BackedWeight Loss
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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.
Combining Training with Nutrition and Medical Support
Exercise alone rarely produces significant weight loss without dietary change. The best approach combines training with a calorie deficit of around 500 kcal per day, which typically results in losing 0.5–1 kg per week according to NHS guidance. For some people, particularly those with a BMI of 30 or above, prescription weight loss medication may be recommended as part of a comprehensive programme.
If you're interested in nhs weight loss or prescription weight loss uk options, your GP can discuss whether medications like GLP-1 weight loss injections might support your training goals. These are used alongside exercise and diet changes, not instead of them. Use our GLP-1 weight loss calculator to understand how medication might fit into your overall weight management strategy, and discuss any programme with your GP before starting.
- 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 type of exercise for weight loss?
A combination of cardiovascular exercise (150 mins weekly), strength training (twice weekly), and flexibility work works best. The most effective programme is one you'll stick to consistently. Walking, cycling, swimming, and gym-based training all produce results when paired with a calorie deficit and regular practice.
How quickly should I expect to lose weight with a training programme?
The NHS recommends losing 0.5–1 kg per week for sustainable results. This typically requires a calorie deficit of around 500 kcal per day through diet and exercise combined. Faster weight loss is possible but increases the risk of muscle loss and is generally not recommended without medical supervision.
Do I need to join a gym for an effective weight loss programme?
No. Effective training programmes use bodyweight exercises, walking, running, or cycling. Many people successfully lose weight through home-based workouts combined with dietary changes. The key is consistency, not expensive equipment or gym membership.
Can weight loss medication like Wegovy replace exercise training?
No. Prescription weight loss medications like Wegovy (semaglutide) are designed to work alongside exercise and dietary changes. They may help reduce appetite and support calorie deficit, but they're not a substitute for physical activity or healthy eating habits.
Should I see my GP before starting a weight loss training programme?
Yes, especially if you have existing health conditions, take regular medications, or haven't exercised regularly. Your GP can advise on safe exercise intensity and rule out any health factors affecting your weight. They can also discuss prescription weight loss options if appropriate for your circumstances.
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.