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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Fruit Smoothie Recipes For Weight Loss
Smoothies can be a practical part of weight management in the UK when made with the right ingredients. Whilst smoothies alone won't cause weight loss, they can support a reduced-calorie diet by providing satisfying, nutrient-dense meals or snacks. The key is choosing lower-sugar fruits, adding protein, and controlling portion sizes. This guide shares evidence-based smoothie recipes designed to fit into a calorie deficit approach to weight loss, alongside increased physical activity.
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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.
Low-Calorie Smoothie Recipes That Support Weight Loss
The best weight loss smoothies balance natural fruit sugars, protein, fibre, and healthy fats to keep you satisfied without excess calories. Here are four simple recipes:
- Berry & Greek Yoghurt Smoothie: 150g mixed berries (blueberries, strawberries), 150g low-fat Greek yoghurt, 100ml unsweetened almond milk, 1 tbsp ground flaxseed. Approximately 180 kcal. High in protein and fibre.
- Spinach & Apple Green Smoothie: 1 medium apple, handful fresh spinach, 1 banana, 100ml unsweetened almond milk, squeeze of lemon juice. Approximately 120 kcal. Packed with micronutrients.
- Mango & Protein Smoothie: 100g fresh mango, 30g vanilla protein powder, 150ml low-fat Greek yoghurt, 50ml water. Approximately 160 kcal. High protein for satiety.
- Avocado & Pear Smoothie: ½ avocado, 1 medium pear, 100ml unsweetened almond milk, ½ tsp honey. Approximately 150 kcal. Provides healthy fats.
Each smoothie provides approximately 150–180 kcal and fits comfortably into a calorie deficit approach to weight management. For context, the NHS recommends a daily calorie deficit of approximately 500 kcal to achieve sustainable weight loss of around 0.5kg per week.
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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.
Making Smoothies Work Within Weight Management
Smoothies support weight loss best when used strategically. Drink them as a meal replacement or snack rather than an addition to your daily intake. Always measure fruit portions — whilst nutritious, fruit contains natural sugars and excess quantities add calories quickly. Avoid sweetened yoghurts, added syrups, or commercial smoothie mixes, which often contain 300+ kcal and high sugar. If you're exploring prescription weight loss medication like GLP-1 injections or other options, use our free GLP-1 weight loss calculator to understand how medication might fit with dietary changes. Track your smoothie calories using our free progress tracker to ensure you're maintaining a calorie deficit. Combined with consistent lifestyle changes — diet, activity, and sleep — smoothies become a sustainable tool for weight management rather than a structured approach.
- 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.
Can fruit smoothies alone help me lose weight?
No. Weight loss requires a calorie deficit, which smoothies alone cannot create. Smoothies are most effective when they replace higher-calorie meals or snacks and fit within your daily calorie target. The NHS emphasises that sustainable weight loss (0.5–1kg per week) comes from combining dietary changes with increased physical activity.
What fruits are best for weight loss smoothies?
Lower-sugar fruits are best: berries (blueberries, strawberries, raspberries), apples, pears, and citrus fruits. Avoid high-sugar fruits like bananas and mango in large quantities. Berries provide fibre and antioxidants with relatively low calories — approximately 50–80 kcal per 100g.
Should I add protein powder to my smoothies?
Yes, protein powder is beneficial. Adding 25–30g of protein per smoothie increases satiety, helps preserve muscle during weight loss, and can reduce calorie cravings. Greek yoghurt or protein powder are effective sources of protein.
Are shop-bought smoothies good for weight loss?
Commercial smoothies are usually not recommended for weight loss. Most contain 300–500 kcal and added sugars. Making smoothies at home lets you control ingredients and portion sizes. Always check nutrition labels if buying ready-made smoothies.
How do smoothies fit with prescription weight loss medication?
Smoothies can complement weight loss medication by providing nutritious, lower-calorie meals. However, GLP-1 medications like Wegovy or Mounjaro work best alongside dietary changes. Our free GLP-1 weight loss calculator can help you understand projected outcomes when combining medication with healthy eating habits.
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.