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
Aqua Aerobics for Weight Loss
Aqua aerobics is a low-impact exercise performed in water that can support sustainable weight loss when combined with a balanced diet. Unlike high-impact gym workouts, water-based exercise is gentler on joints whilst still delivering effective calorie burn and improved fitness. For UK adults looking to lose weight, aqua aerobics offers an accessible, enjoyable alternative to land-based exercise. Whether you're managing your weight through lifestyle changes alone or alongside prescription weight loss medication, regular physical activity plays a crucial role in achieving lasting results.
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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 Aqua Aerobics Supports Weight Loss
Aqua aerobics burns calories through water resistance and continuous movement. A 60-minute session can burn 200–500 kcal depending on intensity and body weight — roughly equivalent to 30–45 minutes of land-based aerobics. The water's buoyancy reduces impact on joints, making it ideal for people with arthritis, excess weight, or previous injuries. Unlike running or gym classes, aqua aerobics is joint-friendly yet effective for cardiovascular fitness and muscle engagement.
For sustainable weight loss, the NHS recommends losing 0.5–1 kg per week through a combination of reduced calories and increased physical activity. Aqua aerobics contributes to this by:
- Increasing daily calorie expenditure
- Improving cardiovascular fitness without joint stress
- Building lean muscle, which supports metabolic health
- Providing a social, enjoyable exercise option — improving adherence
Regular participation (2–3 sessions weekly) alongside a balanced diet supports consistent, healthy weight loss.
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 Started With Aqua Aerobics in the UK
Most UK leisure centres and swimming pools offer aqua aerobics classes, often at low cost (typically £3–8 per session) or included in gym memberships. Classes are usually 45–60 minutes and suitable for all fitness levels — instructors provide modifications for beginners and higher-intensity options for experienced participants.
Before starting any new exercise programme, consult your GP if you have joint problems, heart conditions, or are taking prescription weight loss medication like Mounjaro or Wegovy. Your GP can confirm aqua aerobics is safe for you and ensure it fits with your overall weight management plan. Use our free BMI calculator and weight loss tracker to monitor your progress alongside your exercise 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 many calories does aqua aerobics burn?
A typical 60-minute session burns 200–500 kcal, depending on exercise intensity, water temperature, and your body weight. Higher-intensity classes burn more calories. For weight loss context, this is significant — roughly 3–4 sessions per week alongside a calorie deficit of 500 kcal daily supports the NHS-recommended loss of 0.5–1 kg weekly.
Is aqua aerobics suitable if I'm overweight or obese?
Yes. Aqua aerobics is particularly beneficial for people with excess weight because water buoyancy reduces stress on joints and knees. Many UK leisure centres welcome participants of all sizes, and instructors provide modifications. Starting with low-intensity classes and gradually progressing is safe and effective.
Can I do aqua aerobics whilst taking Mounjaro or Wegovy?
Yes, but consult your GP first. These prescription weight loss injections work alongside exercise and diet, not instead of them. Your GP can confirm aqua aerobics is safe for you specifically, especially if you have any existing health conditions or joint concerns.
How often should I do aqua aerobics for weight loss?
The NHS recommends at least 150 minutes of moderate exercise weekly. Aqua aerobics 2–3 times per week (90–180 minutes) is a good starting point, combined with a balanced diet. Consistency matters more than intensity — regular attendance yields better results than occasional intense sessions.
What do I need to get started?
You'll need a swimsuit, towel, and access to a local pool offering aqua aerobics classes. Most UK leisure centres have these classes; check your local council's website or search "aqua aerobics near me". Many offer free trial sessions. No special equipment is needed — the water provides all the resistance.
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.