What Affects How Much Weight You Lose on These Medicines?
Both Mounjaro and Wegovy work by acting on appetite-regulating pathways in the body. Mounjaro's active substance tirzepatide targets two receptors (GIP and GLP-1), while Wegovy's active substance semaglutide targets GLP-1 receptors. Many people report a reduced appetite and less preoccupation with food — sometimes called reduced 'food noise' — which can make it easier to eat less without feeling deprived. However, how much weight any individual loses depends on a wide range of personal factors.
Key factors that influence your results
- Starting body weight and composition — people with more to lose often see larger absolute numbers early on, though percentage changes vary.
- Dose reached — dose is adjusted gradually by your prescriber over time; the dose you are on is determined by your prescriber based on your individual response and tolerability, not something to change yourself.
- Dietary choices — prioritising protein and fibre while managing overall calories tends to support better outcomes for many people on GLP-1 medicines.
- Activity and lifestyle — movement supports fat loss and helps preserve muscle during weight loss.
- How long you have been on the medicine — results typically build over months, not weeks.
- Plateaus — weight loss almost always slows or stalls at some point; this is a normal physiological response, not a sign the medicine has stopped working.
It is worth remembering that progress on Wegovy follows a similar pattern — many people searching how much weight you can lose on Mounjaro are also curious about Wegovy, and the honest answer for both medicines is the same: results vary, are gradual, and are shaped by the full picture of your lifestyle and health.
If you are interested in how the rate of loss breaks down over shorter timeframes, our page on daily weight changes during a GLP-1 journey explores what daily fluctuations actually mean. For a broader look at typical loss patterns, see our guide on weight loss on Mounjaro across the journey.
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.
AI Meal Tracking. Built for GLP 1 Appetites.
Point your camera at any meal and let our AI do the rest. Breakfast, doses, weight, mood all tracked in seconds.
Tracking Your Progress So the Full Picture Becomes Clear
One of the most useful things you can do when the scale feels slow is to track more than just your weight. GLP Trackr's weight and body tracking feature lets you log your weight regularly and view it as a trend chart — smoothing out the daily noise so you can see the direction of travel over weeks and months, not just day to day. Week-by-week transformation views and body measurement logging mean you capture changes that the scale alone never shows.
The app's insights and analytics tools go further, surfacing correlations between your habits — sleep, protein intake, steps — and your progress. If you hit a plateau, the plateau forecast helps you understand whether a stall is expected and what patterns in your data might be worth discussing with your prescriber.
Your prescriber or doctor is always the right person to talk to about whether your progress is on track and whether any adjustments to your plan are appropriate — GLP Trackr helps you arrive at those conversations with clear, organised data rather than a vague sense of 'things have slowed down.'
For more on managing and understanding your journey over time, visit our weight loss tracking hub.
Ready to see your trend rather than just today's number? Download GLP Trackr on the App Store or Google Play and start a free 7-day trial — your weight chart is waiting.
What does glptrackr include?
10+ powerful features. One app. Built specifically for Mounjaro and Wegovy users.
Everything your GLP-1 journey needs. Free to try for 7 days.
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.
Recipe Library
Browse 50+ high-protein, GLP-1-friendly recipes filtered by meal type, prep time, and dietary needs. Every recipe includes full nutrition info, step-by-step instructions, and tips for eating with side effects.
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.
Exercise & Steps
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.
Community Support
Connect with thousands of others navigating the same medication journey. Share milestones, ask questions, find accountability partners, and get support from people who truly understand.
Never Forget a Dose Again.
Log your Mounjaro or Wegovy injection in seconds. Track your pen, your dose level, and your injection site — so you always know exactly where you are in your treatment.
Watch Your Body Transform, Week by Week.
Log your weight, measurements, and how you're feeling after each dose. GLPTrackr turns your data into clear, motivating charts that show you how far you've really come.
You're Not on This Journey Alone.
Connect with thousands of real GLP-1 users sharing their wins, side effect tips, and meal ideas. Get the support of people who truly get it — because they're living it too.
Download on the App Store Download on the Google Play
Founding Member Offer
One plan. Everything included. No hidden extras.
Founding Member
Exclusive Offer
Join the first 1,000 membersand lock in our lowest ever price
Offer expires in:
786 of 1000 founding spots remaining
50% OFF
Lifetime Price Lock
Never pay full price • Forever
🔒 No credit card required • Cancel anytime
Premium
Ad-free- Track weight, meals, water, exercise, & sleep
- Log doses, injection sites, & side effects
- 60-second daily morning check-in
- AI meal scanning & barcode scanning
- Personalised AI meal plans & recipes
- Golden Dose Finder AI
- Medication Clock — real-time level tracking
- Daily Brief and predictive side effects
- Full insights & weekly transformation cards
- Unlimited progress photos
- Doctor PDF export & body measurements
- Community Access—Connect with GLP-1 users
Powered by
🔒 No credit card required • Cancel anytime
The Most Advanced GLP-1 Brain Ever Built.
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.
Knows Your Cycle
GLPIQ tracks where you are in your injection cycle and adjusts everything around it: lighter meals on nausea days, higher protein when appetite returns, and smarter targets as your medication level shifts.
Predicts Before You Feel It
GLPIQ learns your personal side effect patterns over time. After a few cycles, it starts warning you the morning before a rough day — and adjusts your meal plan automatically.
Finds Your Golden Dose
GLPIQ analyses every dose you've been on: weight loss rate, side effects, food noise, mood, protein adherence and tells you which dose gave you the best results. No other app does this.
Download glptrackr today.
Available on iOS and Android. 7-day free trial, no credit card needed.
Frequently asked questions.
Results vary considerably between individuals and depend on factors like starting weight, the dose reached (set by your prescriber), dietary habits, and activity levels. There is no single figure that applies to everyone — progress builds gradually over months rather than weeks.
Both medicines support weight loss by reducing appetite through different but related mechanisms, and both show meaningful average results in clinical studies. Individual results differ for each person, and the right medicine for you is a decision for your prescriber or doctor.
Weight loss plateaus are a normal part of any long-term weight loss journey — the body adapts over time. A stall does not necessarily mean the medicine has stopped working. Discuss any concerns about your progress with your prescriber or doctor.
Many people begin to notice changes within the first few weeks, but meaningful weight loss typically builds over several months. Results are gradual and vary by person. Your prescriber is best placed to advise on what to expect based on your individual situation.
Yes — GLP Trackr lets you log your weight, view trend charts, record body measurements, and see week-by-week progress. Insights tools help you spot patterns and understand what is influencing your results, so you can have more informed conversations with your prescriber.