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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Does Cucumber Help Weight Loss?
Cucumber is often promoted as a weight loss food, but the evidence is more nuanced than simple marketing suggests. While cucumbers can be part of a healthy diet, they won't directly cause weight loss on their own. However, they do have properties that may support weight management when combined with other healthy lifestyle changes. This guide explains what the science actually says about cucumbers and weight loss, and how they fit into broader NHS weight loss approaches. For personalised weight management advice, your GP can discuss options with you, including prescription weight loss medication if appropriate.
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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.
Why Cucumbers Are Promoted for Weight Loss
Cucumbers are often marketed as a "weight loss food" because of several properties: they're very low in calories (just 16 kcal per 100g), high in water content (around 95%), and contain some fibre. These characteristics led people to believe eating more cucumbers would automatically lead to weight loss. However, this logic misses a crucial point — weight loss fundamentally depends on achieving a calorie deficit. Simply eating low-calorie foods doesn't studied results if overall calorie intake remains unchanged.
The NHS weight loss approach emphasises that sustainable weight management requires a reduced-calorie diet combined with increased physical activity. Cucumbers can certainly be part of this strategy as a low-calorie vegetable that adds volume to meals, potentially helping you feel fuller on fewer calories. Studies on weight management in the UK show that people who increase vegetable intake alongside calorie reduction do tend to lose weight more effectively — but the weight loss comes from the overall deficit, not the vegetables themselves.
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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.
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The Real Role of Cucumbers in Weight Loss
Cucumbers can support weight loss efforts in practical ways: they're filling, hydrating, and displace higher-calorie foods in your diet. If you swap crisps or sugary snacks for cucumber, you'll reduce calorie intake. They're also nutrient-dense enough to include as part of a balanced reduced-calorie diet. The water content means they add volume to meals without many calories, which may help with satiety.
However, cucumbers alone won't create the calorie deficit needed for weight loss. The NHS recommends losing 0.5–1 kg per week, which typically requires a 500 kcal daily deficit. This must come from overall dietary changes and activity, not from any single food. For significant weight loss, particularly if you have a BMI in the overweight or obese range, your GP may discuss prescription weight loss options like GLP-1 medications, which work alongside dietary changes to support sustainable results.
- 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 eating cucumber every day help me lose weight?
Eating cucumber daily won't cause weight loss on its own, but it can support weight loss efforts as part of a calorie-controlled diet. Cucumbers are very low in calories and high in water, so they can help you feel fuller whilst reducing overall calorie intake. The key to weight loss is achieving a calorie deficit through a combination of reduced-calorie eating and physical activity — cucumbers are a helpful tool within that broader strategy, not a solution by themselves.
How many calories are in cucumber?
Cucumber contains approximately 16 calories per 100g (roughly 45 calories in a medium cucumber). This makes it one of the lowest-calorie vegetables available. For context, a typical snack of crisps contains 150–200 calories, so swapping to cucumber can meaningfully reduce your daily calorie intake if you're trying to create a calorie deficit for weight loss.
Does cucumber speed up metabolism?
No, cucumber does not speed up metabolism or boost fat burning. Metabolism is primarily determined by body composition, age, and genetics — no single food can significantly change it. The idea that certain foods "boost metabolism" is largely a marketing myth. Weight loss depends on creating a calorie deficit through diet and exercise, not on metabolism-boosting foods.
What's the best way to use cucumber for weight loss?
Use cucumber as a low-calorie addition to meals rather than relying on it as a weight loss tool. Add it to salads, use it as a crunchy side dish, or snack on it between meals instead of higher-calorie options. The benefit comes from displacing other foods, not from any special property of the cucumber itself. Combine cucumber-based meals with a structured calorie-controlled diet and physical activity for best results.
Should I consider prescription weight loss medication if cucumber isn't enough?
If you've been trying to lose weight without success, your GP can assess whether prescription weight loss medication might be appropriate for you. GLP-1 weight loss injections are available on the NHS through specialist services or privately, and evidence from clinical trials shows they can support significant weight loss alongside dietary changes. Your GP can discuss whether this option is suitable based on your individual health and BMI.
Ready to take control of your weight loss journey?
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