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
Does Chamomile Tea Help With Weight Loss?
Chamomile tea is a popular herbal drink often promoted for wellness, but scientific evidence for direct weight loss is limited. Whilst chamomile may support relaxation and sleep quality—both factors that indirectly influence weight management—it's not a weight loss solution on its own. For UK adults seeking effective weight management support, prescription-only medications like Mounjaro and Wegovy offer evidence-based options alongside lifestyle changes. This guide explores what the research actually shows about chamomile, and introduces prescription weight loss medication alternatives available through the NHS or private prescribing.
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.
UK Prescription Weight Loss Options Available
If you're exploring weight loss strategies in the UK, several prescription medications have strong clinical evidence. Mounjaro (tirzepatide) is a once-weekly injection that works as a dual GIP and GLP-1 receptor agonist. In clinical trials, it helped adults lose an average of 15–21% of their body weight over 72 weeks—results vary individually. Wegovy (semaglutide) is another once-weekly GLP-1 injection, with average weight loss around 15% in clinical trials. Saxenda (liraglutide) is a daily injection option. All three are prescription-only and require a clinical assessment from a UK-licensed prescriber before being prescribed. Use our free GLP-1 weight loss calculator to explore potential outcomes at different medication doses, alongside a reduced-calorie diet and increased physical activity.
- Mounjaro: dual mechanism (GIP + GLP-1), doses 2.5 mg–15 mg weekly
- Wegovy: GLP-1 mechanism, doses 0.25 mg–2.4 mg weekly
- Saxenda: GLP-1 mechanism, doses 0.6 mg–3 mg daily
- All require prescription and clinical eligibility assessment
- Individual results vary; medication works best with lifestyle changes
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.
NHS vs Private Access to Weight Loss Medication
In the UK, you can access prescription weight loss medication through two routes. NHS access is available through specialist tier 3/4 weight management services—typically by GP referral. However, NHS availability varies significantly by region, and waiting lists can be lengthy. Private access is available through GPhC-registered online pharmacies following an online clinical assessment with a UK-licensed prescriber. Your GP can assess eligibility or discuss whether prescription medication is appropriate for you. To find out if you qualify, check your BMI using our free BMI calculator above, then discuss your options with your GP or arrange a private consultation. Eligibility generally includes adults with BMI ≥30, or BMI 27–29.9 with weight-related health conditions like type 2 diabetes, high blood pressure, or sleep apnoea.
- 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.
Is chamomile tea scientifically proven to cause weight loss?
No. Whilst chamomile may support relaxation and sleep, which indirectly influence weight management, there is no strong scientific evidence that chamomile tea directly causes weight loss. It's a relaxing beverage but should not be relied on as a weight loss strategy on its own.
What prescription weight loss options are available in the UK?
Three medications are licensed for weight management: Mounjaro (tirzepatide), Wegovy (semaglutide), and Saxenda (liraglutide). All are prescription-only and require clinical assessment. Mounjaro and Wegovy are once-weekly injections; Saxenda is daily. Access is through NHS specialist services or private prescribing.
How much weight can I expect to lose with Mounjaro or Wegovy?
Clinical trials show average weight loss of 15–21% for Mounjaro and around 15% for Wegovy. However, individual results vary significantly. Weight loss works best when medication is combined with reduced-calorie diet and increased physical activity, and it is not assured for every person.
How do I find out if I'm eligible for prescription weight loss medication in the UK?
Generally, you're eligible if your BMI is 30 or above, or 27–29.9 with a weight-related health condition. Contact your GP to discuss referral to NHS specialist services, or arrange a private consultation with a UK-licensed prescriber. Use our BMI calculator to check your starting BMI.
What's the difference between Mounjaro and Wegovy?
Mounjaro is a dual GIP and GLP-1 receptor agonist; Wegovy is a GLP-1 agonist only. Mounjaro has shown slightly higher average weight loss in trials. Both are once-weekly injections, prescription-only, and require clinical assessment. Your prescriber will advise which is most appropriate for you.
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.