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
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Walking and Weight Loss — A Practical UK Guide
Walking is one of the most accessible and sustainable forms of physical activity for weight management in the UK. While walking alone may not produce gradual weight management, it plays an important supporting role when combined with dietary changes and other lifestyle modifications. This guide explains how walking contributes to weight loss, how much you need to do for results, and how to integrate it into a realistic weight management plan. Use our free BMI calculator to establish your current weight status, then track your progress as you build a more active routine.
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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.
How Walking Supports Weight Loss
Walking contributes to weight loss through several mechanisms. First, it burns calories—the amount varies based on your weight, pace, and terrain, but a typical adult burns approximately 200–300 calories per hour walking at a moderate pace (3–4 mph). Second, regular walking helps maintain and build muscle mass, which supports your basal metabolic rate. Third, walking can improve insulin sensitivity and blood sugar control, which are important for weight management and reducing type 2 diabetes risk.
However, the NHS recognises that weight loss requires a calorie deficit—typically around 500 kcal per day for sustainable loss of approximately 0.5 kg per week. Walking alone may not create this deficit, which is why the most effective approach combines physical activity with dietary changes. For significant weight management, many people also benefit from prescription weight loss medication alongside lifestyle modifications.
- Moderate walking (30 minutes daily): burns ~150 calories
- Brisk walking (45 minutes daily): burns ~300 calories
- Walking uphill or on varied terrain: increases calorie burn by 20–30%
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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.
Building a Sustainable Walking Plan
The NHS recommends that adults aim for at least 150 minutes of moderate physical activity per week. This can be achieved through 30 minutes of brisk walking, five days a week. Start where you are—if you're currently sedentary, begin with 10–15 minute walks and gradually increase duration and pace. Consistency matters more than intensity; a daily 30-minute walk is more effective for weight loss than occasional intense exercise.
Walking works best when combined with other weight management strategies. Track your progress using our free progress tracker to monitor both activity levels and weight changes over time. If you're struggling to lose weight despite increased activity and dietary changes, speak to your GP about prescription weight loss options such as GLP-1 medications, which may be appropriate alongside your walking routine.
- 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.
How much weight can I lose by walking?
Weight loss from walking depends on your calorie deficit. At 500 kcal per day deficit, expect approximately 0.5 kg per week. Walking typically burns 200–300 calories per hour, so combining daily walks with modest dietary changes (rather than relying on walking alone) is most effective. Individual results vary based on current weight, metabolism, and overall diet.
How long should I walk each day to lose weight?
The NHS recommends 150 minutes of moderate activity weekly—equivalent to 30 minutes of brisk walking, five days a week. For weight loss specifically, aim for at least 45 minutes daily at a steady pace. Consistency is more important than duration; a regular daily routine produces better results than occasional longer walks.
Is walking better than other forms of exercise for weight loss?
Walking is excellent because it's low-impact, sustainable, and accessible for most people. However, weight loss is primarily determined by calorie deficit, not exercise type. Combining walking with strength training and dietary changes is more effective than any single activity. Your overall lifestyle approach matters more than the specific exercise chosen.
Can I lose weight by walking without changing my diet?
Walking alone rarely creates sufficient calorie deficit for meaningful weight loss. Most people need to combine increased activity with dietary changes—roughly a 500 kcal daily deficit supports 0.5 kg weekly loss. Use our BMI calculator to assess your current status, then consider both diet and activity adjustments together.
Should I combine walking with weight loss medication?
Walking and prescription weight loss medication (such as GLP-1 injections) work well together. Medication may help reduce appetite and cravings, making it easier to maintain dietary changes. Speak to your GP about whether prescription weight loss treatment might support your efforts, especially if lifestyle changes alone aren't producing results.
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.