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 Exercise for gradual weight management
The best exercise for gradual weight management combines high-intensity activity with consistent effort, but the most effective approach depends on your fitness level, preferences, and overall health goals. The NHS recommends at least 150 minutes of moderate-intensity aerobic activity weekly, alongside strength training. However, sustainable weight loss requires both exercise and a calorie deficit — typically through dietary changes. If you're considering prescription weight loss medication, our GLP-1 weight loss calculator can help you understand how exercise and medication work together for weight management UK.
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.
High-Impact Exercises for gradual weight management
High-intensity interval training (HIIT) is among the most effective exercises for gradual weight management. HIIT alternates short bursts of intense activity with recovery periods, burning significant calories in shorter timeframes and boosting metabolism for hours afterwards. Studies show HIIT can burn 25–30% more calories than steady-state exercise.
- Running or sprinting — burns 600–900 calories per hour depending on intensity and body weight
- Cycling — high-intensity cycling burns 400–800 calories per hour
- Swimming — full-body workout burning 500–700 calories per hour
- Rowing — combines cardio and strength, burning 400–800 calories per hour
- Boxing or kickboxing — intense full-body activity burning 500–900 calories per hour
Consistency matters more than intensity. The NHS emphasises that sustainable weight loss occurs at 0.5–1 kg per week, achieved through combining exercise with dietary changes and a calorie deficit of approximately 500 kcal daily.
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.
Strength Training and Long-Term Weight Loss
While cardio burns immediate calories, strength training builds muscle, which increases your resting metabolic rate — meaning you burn more calories even at rest. The NHS recommends resistance exercises at least twice weekly for all adults. Building muscle also prevents the muscle loss that can occur during gradual weight management, helping you maintain a healthier body composition.
For effective nhs weight loss, combine 150 minutes weekly moderate cardio, two strength sessions, and consistent dietary changes. Use our free BMI calculator to track whether your current weight sits in the healthy range for your height, then set realistic goals. Remember: gradual weight management can be difficult to sustain alone — many people find prescription weight loss medication helpful alongside exercise and diet changes.
- 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 fastest way to lose weight through exercise?
High-intensity interval training (HIIT) burns the most calories per minute and boosts metabolism for hours after exercise. However, the fastest overall weight loss combines exercise, a calorie deficit (typically 500 kcal daily), and sometimes prescription weight loss medication. NHS guidance recommends losing 0.5–1 kg weekly for sustainable results.
How much exercise do I need for gradual weight management?
The NHS recommends 150 minutes of moderate-intensity aerobic activity plus two strength-training sessions weekly. For more gradual weight management, you might increase intensity or duration, but this should be combined with dietary changes. Consult your GP before starting an intense exercise programme, especially if you're overweight or have health conditions.
Can exercise alone achieve gradual weight management?
Exercise alone is rarely sufficient for gradual weight management — a calorie deficit of approximately 500 kcal daily is needed for 0.5 kg weekly loss. Most of this deficit comes from dietary changes rather than exercise alone. This is why prescription weight loss injections are often combined with exercise and diet for better results.
Is HIIT safe for someone significantly overweight?
HIIT is high-impact and may strain joints if you're significantly overweight. Start with low-impact options like swimming or cycling, then progress gradually. Always consult your GP before starting a new exercise programme, especially if you have weight-related health conditions like high blood pressure or joint problems.
How does exercise combine with weight loss medication?
Prescription weight loss medication like Mounjaro or Wegovy works best alongside regular exercise and a reduced-calorie diet — medication alone isn't a substitute. Exercise preserves muscle mass, improves cardiovascular health, and supports sustainable weight loss. Our GLP-1 weight loss calculator can show estimated results when combining medication with lifestyle changes.
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.