How Eligibility for Weight Loss Injections Is Generally Assessed
Weight loss injections such as Wegovy (semaglutide) and Mounjaro (tirzepatide) are prescription-only medicines. No one is prescribed them without a clinical assessment — a prescriber or doctor reviews a person's BMI, weight-related health conditions, and medical history before deciding whether they are suitable.
Typical criteria that prescribers consider
While exact thresholds differ depending on the healthcare system and the specific medicine, prescribers commonly look at:
- BMI: A starting point often referenced is a BMI of 30 or above, or 27–30 with at least one weight-related health condition such as type 2 diabetes, high blood pressure, or raised cholesterol.
- Previous weight management attempts: Many pathways require evidence that lifestyle changes have already been tried.
- Absence of contraindications: Certain medical histories — including personal or family history of thyroid conditions, pancreatitis, or other factors — may affect suitability. Your prescriber is best placed to assess this for you.
- Overall clinical picture: Age, other medications, and comorbidities all form part of the assessment.
Publicly funded access varies widely
In some countries or regions, weight loss injections may be available through publicly funded healthcare under specific criteria. In others, they are accessed privately. The rules change as medicines gain new approvals and healthcare bodies update their guidance. For current eligibility in your area, your prescriber or doctor is the right person to ask — they will know the criteria that apply to you.
If you are researching weight loss jabs and how NHS access works or want a broader overview of weight loss injections generally, those pages cover the wider picture. If you are still working out how to get weight loss injections, speaking with a prescriber is always the first step.
average weekly weight change in the first 16 weeks of Mounjaro & Wegovy use*
Tracking the right four numbers — weight, waist, protein and dose — turns a noisy chart into a clear story. That's the loop GLP-1 users keep coming back for.
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Already Prescribed? Here's How GLP Trackr Helps You Stay on Track
Once you have been prescribed a weight loss injection and started treatment, keeping your weekly routine consistent matters. That is where GLP Trackr comes in.
The app's injection-site tracking and rotation feature lets you log exactly where each injection was given — abdomen, thigh, or upper arm — and suggests your next site automatically, so rotation becomes effortless rather than something to remember. Alongside that, the dose logging function records every shot with its date, time, and strength, giving you a clear, timestamped record of your treatment history.
Many people find it useful to have this log ready for prescriber appointments — a complete picture of doses taken, sites used, and any patterns noticed along the way. GLP Trackr's doctor report feature pulls this together so you can walk into an appointment informed.
For a wider look at managing your injections week to week, see our guide to weight loss jabs or explore the full weight loss injections hub.
Questions about whether you are eligible, whether a medicine is suitable for you, or anything related to your prescription should always go to your prescriber or doctor — they have the full picture of your health that no app can replicate.
If you are already on your treatment and want to make every dose count, give GLP Trackr a try. Download it free on the App Store or Google Play and explore everything it offers with a 7-day free trial — no commitment needed.
What does glptrackr include?
10+ powerful features. One app. Built specifically for Mounjaro and Wegovy users.
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Morning Check-In
Start every day with a 60-second wellness check-in. Log how you're feeling, track nausea, appetite, energy, and mood — giving you and your care team a complete picture of how your medication is working.
Injection Tracking
Log every dose with a single tap. Track your dose history, phase in your cycle, estimated medication levels, and upcoming injection dates — with reminders so you never miss a scheduled shot.
Hydration Reminders
Staying hydrated is especially important on GLP-1 medications. Set daily water targets, log intake throughout the day, and receive smart nudges when you're falling behind your goal.
Smart Meal Planning
Personalized meal plans built around your current dose phase and side effects. Every meal is GLP-1 optimized — high in protein, gentle on the stomach, and scaled to your reduced appetite.
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Progress Analytics
Beautiful, easy-to-read charts show your weight loss trajectory, weekly nutrition trends, medication responses, and wellbeing scores over time — turning raw data into genuine insights.
AI Meal Scanning
Snap a photo of any meal and get a full nutrition breakdown in seconds — calories, protein, carbs, fat, and fibre. No searching. No manual logging. Just point, snap, and track.
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Log walks, workouts, and movement with activity targets that flex with your energy levels. On lower-energy dose days, gentler targets keep you moving without burning out.
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The first AI built exclusively for GLP-1 weight loss. Every insight, every meal plan, every prediction trained on one thing only: helping you get the most out of your medication.
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Frequently asked questions.
Eligibility is assessed by a prescriber and commonly considers BMI (often 30 or above, or lower with weight-related conditions), previous weight management attempts, and overall health. Criteria vary by country, region, and the specific medicine. Your prescriber or doctor can tell you what applies in your situation.
BMI is one factor prescribers consider, but it is not the only one. Health conditions such as type 2 diabetes or high blood pressure can also affect eligibility. Suitability is always decided individually by a prescriber, not by a single number alone.
No — access through publicly funded systems varies significantly by country and region, and criteria are updated as guidance evolves. Some people access these medicines privately. Your prescriber or doctor is the right person to ask about what is available where you are.
GLP Trackr is a tracking and journaling app for people already prescribed Mounjaro or Wegovy. It does not assess eligibility or provide medical advice. For eligibility questions, speak with your prescriber or doctor.
GLP Trackr helps you log every dose, track injection sites and rotation, and build a clear record of your treatment to discuss with your prescriber. It is available free to try for 7 days on the App Store and Google Play.