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
Weight Loss Fruit Smoothies — Healthy Recipes and Nutrition Tips
Fruit smoothies can be a helpful part of a balanced weight loss plan, but their calorie content varies significantly depending on ingredients. In the UK, most weight management guidance recommends including nutrient-dense foods like fruits and vegetables, but understanding portion sizes and added sugars is essential. This guide explains how to make smoothies that support your weight management goals without derailing your calorie balance—whether you're managing weight through diet alone or alongside prescription weight loss medication like Mounjaro or Wegovy.
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.
Making Weight Loss-Friendly Fruit Smoothies
A typical fruit smoothie can range from 150 to 500+ calories depending on ingredients, so portion control is crucial for weight loss. To create a smoothie that supports sustainable weight management in the UK context, aim for 200–300 calories per serving. Include one or two portions of fruit (roughly 80–100g), add protein (Greek yoghurt, protein powder, or nut butter), and use unsweetened liquid like water, unsweetened almond milk, or green tea rather than juice or sweetened alternatives.
Avoid adding honey, agave syrup, or commercial smoothie bases—these dramatically increase calorie and sugar content. Instead, use frozen fruit (which is equally nutritious and extends shelf life) and add fibre-rich ingredients like oats or ground flaxseed. These additions increase satiety and support digestion. The NHS recommends that fruit smoothies should count as only one of your five daily portions of fruit and vegetables, even if they contain multiple fruits, because blending removes beneficial fibre structure.
- Protein source: 20–30g per smoothie (keeps you fuller longer)
- Liquid base: 150–200ml unsweetened milk or water
- Fruit: 80–100g fresh or frozen (roughly one medium apple or banana)
- Fibre: oats, chia seeds, or ground flaxseed
- Avoid: honey, agave, syrups, and commercial smoothie mixes
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.
Smoothies Within Your Broader Weight Loss Plan
If you're working towards weight loss management in the UK, smoothies work best as a planned meal or snack within your overall calorie intake, not as an "extra" on top of your usual diet. Some people find that smoothies, whilst nutritious, are less satisfying than whole foods because blending reduces the chewing time that signals fullness to your brain. If you're using prescription weight loss medication—whether through NHS specialist weight management services or private prescribing—smoothies remain a practical option but should still fit within your reduced-calorie diet approach.
Track your smoothie calories accurately using our free BMI calculator to understand your overall health targets, and use our weight loss calculator to estimate your progress realistic timeline. Consistency matters more than perfection: a 200-calorie smoothie supporting your calorie deficit will help more than occasionally skipping meals and then overeating.
- Log smoothie ingredients to track calories accurately
- Treat smoothies as a meal or substantial snack, not an extra
- Pair with protein and fibre to increase satiety
- Use our progress tracker to monitor your weight loss journey
- 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 should a weight loss smoothie have?
For weight loss, aim for 200–300 calories per smoothie. This keeps the smoothie nutritious without exceeding healthy meal portion guidelines. Remember that a calorie deficit of around 500 kcal per day typically supports a loss of approximately 0.5kg per week—smoothie calories count toward this total.
Can I add protein powder to a weight loss smoothie?
Yes, protein powder is helpful for weight loss smoothies. It increases satiety and supports muscle maintenance during calorie restriction. Choose unflavoured or minimally sweetened options with minimal added sugars. Around 20–30g protein per smoothie is ideal.
Should I use fruit juice or whole fruit in smoothies for weight loss?
Always use whole fruit instead of juice. Juice concentrates sugar and removes beneficial fibre that aids fullness and digestion. Whole fruit (fresh or frozen) provides the same nutrients but with better satiety and blood sugar balance.
Are weight loss smoothies suitable if I'm taking Mounjaro or Wegovy?
Yes, smoothies can fit into any weight management plan, including those using GLP-1 medications like Mounjaro or Wegovy. However, they should still follow portion guidelines and fit within your reduced-calorie diet. Some people find smoothies less satisfying than whole foods—listen to your body's fullness signals.
How do I count smoothie calories for NHS weight loss guidelines?
Use your phone's nutrition app or food tracking software to log each ingredient separately. Add up total calories to see your smoothie's exact content. The NHS recommends a sustainable calorie deficit approach—smoothie calories count like any other food toward your daily intake.
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.