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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Beginner Gym Workout Routine For Weight Loss
Starting a gym routine is one of the most effective ways to support weight loss alongside a healthy diet. If you're new to exercise, beginning with a structured beginner workout routine helps build confidence, prevent injury, and create sustainable habits. Whether you're managing your weight management UK goals alone or alongside prescription weight loss medication, regular physical activity significantly boosts results. This guide covers safe, beginner-friendly exercises, how to progress safely, and how gym workouts fit into a broader weight loss strategy.
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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.
Essential Exercises For Beginner Weight Loss Workouts
A beginner gym routine should focus on compound movements that work multiple muscle groups, burn calories efficiently, and build foundational strength. Start with 3 sessions per week with rest days in between to allow recovery.
- Treadmill or stationary bike: 15–20 minutes steady cardio at a comfortable pace — conversation should be possible but slightly difficult
- Chest press machine: 3 sets of 12 repetitions — builds upper body strength
- Leg press machine: 3 sets of 12 repetitions — targets largest muscle groups for maximum calorie burn
- Rowing machine: 10 minutes at moderate intensity — full-body cardio with low joint stress
- Bodyweight squats or assisted squats: 3 sets of 10 repetitions — functional movement that aids daily life
- Resistance band rows: 3 sets of 12 repetitions — builds back strength safely
Each session should last 45–60 minutes including warm-up and cool-down. A gym instructor can show correct form on machines — this prevents injury and maximises effectiveness. Track your progress with our free progress tracker to monitor improvements in strength and endurance over weeks.
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.
How Gym Routines Support Sustainable Nhs Weight Loss
Regular exercise creates a calorie deficit — essential for weight loss. Approximately 30 minutes of moderate-intensity gym activity burns 200–300 calories, which combines with diet changes to produce steady, sustainable weight loss. The NHS recommends that adults aim for 150 minutes of moderate-intensity activity per week — roughly three gym sessions of 50 minutes each.
Beyond calorie burn, gym routines build muscle mass, which increases resting metabolic rate — meaning your body burns more calories even at rest. Strength training also improves blood sugar control, reduces joint stress, and boosts mood and energy — all important for long-term adherence to weight loss goals. If you're using prescription weight loss medication or glp-1 weight loss injections, exercise amplifies their effects. Use our GLP-1 weight loss calculator to explore how medication combined with consistent gym activity can support your targets, and our BMI calculator to track improvements in your health metrics 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.
How long should a beginner gym session be for weight loss?
Aim for 45–60 minutes including 5–10 minutes warm-up and cool-down. Effective sessions combine 20–25 minutes of cardio with 20–30 minutes of strength training. More time doesn't assures better results — consistency and effort matter more than duration. Three sessions per week is ideal for beginners.
Should I do cardio or weights for weight loss?
Both. Cardio burns calories during activity; strength training builds muscle that increases resting metabolism. A balanced beginner routine combines 50% cardio (treadmill, bike, rowing) and 50% resistance training (machines, bodyweight, bands). This approach maximises calorie burn and supports long-term weight loss.
How quickly will I see weight loss results from gym workouts?
Weight changes within 4–6 weeks with consistent exercise and dietary changes combined. Individual results vary based on starting weight, age, metabolism, and diet quality. Use our BMI calculator to track health metrics alongside weight; improvements in fitness, energy, and strength often appear before the scales shift significantly.
Can I do beginner gym workouts if I'm overweight or have joint problems?
Yes, but start conservatively. Water-based exercise, stationary bikes, and resistance machines are lower-impact than running. Speak to your GP or a gym instructor about modifications for your specific needs. Building strength gradually reduces joint stress over time and supports safer, more comfortable weight loss.
Is gym exercise alone enough for weight loss?
No. Weight loss requires a calorie deficit through diet and exercise combined. Gym workouts typically create 200–300 calorie deficits; dietary changes are equally important. The NHS recommends both together. If weight loss is slow despite regular exercise and healthy eating, your GP can discuss prescription weight loss medication or other bmi weight loss strategies suited to 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.