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
Healthy Nighttime Snacks for Weight Loss
Late-night cravings can undermine weight loss efforts, but choosing the right snacks doesn't have to. This guide covers practical, nutritious nighttime options that support healthy weight management alongside lifestyle changes. If you're seeking additional support for sustainable weight loss in the UK, prescription medications like Mounjaro and Wegovy are available for eligible adults through both NHS and private routes. We'll explore both food choices and weight management options to help you succeed.
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.
Smart Snack Choices That Support Weight Loss
Good nighttime snacks are low in calories, high in protein or fibre, and won't spike blood sugar. Opt for Greek yoghurt (unsweetened), cottage cheese, a small handful of almonds, or a piece of fruit like an apple or pear. Herbal tea, warm milk, or water can satisfy the urge to eat without calories. Avoid sugary biscuits, crisps, and heavy meals within 2–3 hours of bedtime, as these disrupt sleep and trigger weight gain.
- Protein options: Hard-boiled eggs, turkey slices, or protein yoghurt (under 100 kcal)
- Fibre-rich choices: Whole grain crackers with hummus, or raw vegetables like celery or carrots
- Portion control: Keep snacks under 150 kcal to avoid unnecessary calorie surplus
- Timing: Eat 1–2 hours before bed to allow digestion
Consistent nighttime snacking habits combined with overall calorie awareness are key to effective weight management in the UK health context.
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.
Prescription Weight Management Options Available in the UK
If snacking habits and lifestyle changes alone aren't achieving your goals, UK-licensed prescription weight loss medications may help. Mounjaro (tirzepatide) and Wegovy (semaglutide) are once-weekly injections that support appetite control and fullness, often used alongside dietary changes. Clinical trials showed average weight loss of 15–21% body weight with Mounjaro and approximately 15% with Wegovy, though individual results vary.
You may be eligible if you have a BMI of 30 or above, or BMI 27–29.9 with weight-related health conditions like type 2 diabetes or high blood pressure. Access is available through NHS specialist weight management services (with potential waiting lists) or private online prescribing. A licensed prescriber will assess whether medication is suitable for you based on your individual health profile.
Start by having a conversation with your GP about whether prescription weight loss medication might support your weight management journey. NHS specialist services can assess eligibility for funded treatment, though availability varies by region. Alternatively, private online prescribing services offer faster access without NHS referral. Calculate your BMI using our free BMI calculator above to understand your starting point, and track your progress with our free progress tracker as you make dietary and lifestyle changes. Our GLP-1 weight loss calculator can help you explore potential outcomes with prescription medication if you choose to pursue that route.
- 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.
What are the best low-calorie nighttime snacks for weight loss?
Protein-rich options like Greek yoghurt, cottage cheese, and hard-boiled eggs are ideal — they satisfy hunger without excess calories. High-fibre choices such as raw vegetables or whole grain crackers with hummus also work well. Aim for snacks under 150 kcal and eat 1–2 hours before bed to avoid sleep disruption.
Can prescription weight loss medication help if I struggle with late-night eating?
Yes. Mounjaro and Wegovy work by reducing appetite and food cravings, which can help manage evening hunger. They're prescription-only and require clinical assessment. A prescriber will determine if you're eligible based on your BMI and health conditions.
How do I know if I'm eligible for NHS weight loss medication?
You may be eligible if you have a BMI of 30 or above, or 27–29.9 with weight-related conditions such as type 2 diabetes, high blood pressure, or sleep apnoea. Your GP can assess your eligibility and refer you to specialist NHS weight management services in your area.
What's the difference between Mounjaro and Wegovy for weight loss?
Mounjaro (tirzepatide) is a dual GIP and GLP-1 agonist with average weight loss of 15–21% in clinical trials. Wegovy (semaglutide) is a GLP-1 agonist with average weight loss around 15%. Both are once-weekly injections. A prescriber can advise which may suit you better.
How quickly can I access prescription weight loss treatment in the UK?
NHS access typically involves a GP referral to specialist tier 3 services, which may have waiting lists of months to years depending on your region. Private online prescribing offers faster access without NHS referral, though costs vary. Both routes require a clinical assessment by a licensed prescriber.
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.