What GLP-1 Is and How GLP-1 Medicines Work
GLP-1 is a hormone — sometimes called an incretin — released by cells in the small intestine in response to food. It signals to the brain that you have eaten, slows the rate at which the stomach empties, and helps regulate blood sugar levels by prompting the pancreas to release insulin when needed.
What "GLP-1 receptor agonist" means
The medicines commonly called GLP-1 drugs work by mimicking or enhancing the effects of this natural hormone. They bind to GLP-1 receptors in the body — a mechanism described as being a GLP-1 receptor agonist. The result, as many people on these medicines report, is a reduced sense of hunger, less preoccupation with food (sometimes called reduced "food noise"), and a greater feeling of fullness after smaller meals.
Mounjaro and the dual GIP/GLP-1 mechanism
Not all GLP-1 medicines work in exactly the same way. Wegovy (semaglutide) acts on the GLP-1 receptor. Mounjaro (tirzepatide) acts on both GLP-1 and GIP (glucose-dependent insulinotropic polypeptide) receptors — making it a dual receptor agonist. You can read more about that distinction on the GIP and Mounjaro page, or explore a broader overview of GLP-1 medication and the GLP-1 hormone in more detail.
What GLP-1 medicines are not
These are prescription-only medicines — they are not supplements, appetite suppressants available over the counter, or quick fixes. Suitability is decided by a prescriber based on your individual health history. They are also not insulin, and are not appropriate for everyone. If you want to compare the two main options side by side, the Wegovy and GLP-1 page offers a factual overview, and the comparing GLP-1 options page covers the broader landscape neutrally.
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 GLP-1 Journey with GLP Trackr
Once you are prescribed a GLP-1 medicine, the day-to-day reality involves a lot of moving parts — weekly injections, shifting appetite, new food habits, and gradual changes to your weight and wellbeing. GLP Trackr is built specifically to help you stay on top of all of it.
The most immediate feature for anyone starting out is dose and injection logging: every shot is recorded with the date, strength, and injection site, so you always know exactly where you are in your weekly schedule. The app also tracks injection-site rotation, reminding you to vary where you inject to keep things comfortable over time.
As your journey progresses, the insights and analytics tools help you understand your own patterns — how your weight, mood, sleep, and food intake interact over weeks and months. That kind of joined-up picture is genuinely useful to bring to appointments with your prescriber.
For a deeper look at what these medicines do and how people experience them day to day, explore the what GLP-1 medicines do page or the full Mounjaro hub for comprehensive tracking guidance. You can also browse GLP-1 meds and more on GLP-1 for related reading.
GLP Trackr is a tracking and journaling companion — it is not a substitute for guidance from your prescriber or doctor, who knows your full medical history. If you have any questions about whether a GLP-1 medicine is right for you, or about your current treatment, always speak with your healthcare professional.
Ready to bring your whole GLP-1 journey into one place? Download GLP Trackr on the App Store or Google Play and start a free 7-day trial — log your doses, track your progress, and see your patterns emerge week by week.
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.
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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.
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Frequently asked questions.
GLP-1 stands for glucagon-like peptide-1. It is a hormone naturally produced in the gut that helps regulate appetite, the feeling of fullness after eating, and blood sugar levels. Prescription medicines that mimic its effects are called GLP-1 receptor agonists.
Wegovy (semaglutide) is a GLP-1 receptor agonist. Mounjaro (tirzepatide) acts on both GLP-1 and GIP receptors, making it a dual agonist. Both are prescription-only medicines; suitability for either is determined by your prescriber or doctor, not by personal preference.
A GLP-1 receptor agonist binds to GLP-1 receptors and mimics the natural hormone's effects — many people report reduced appetite, less food preoccupation, and a greater sense of fullness. Effects vary between individuals; your prescriber can explain what to expect for your situation.
No. GLP-1 and insulin are different. GLP-1 is a gut hormone that influences appetite and helps prompt insulin release when blood sugar rises. GLP-1 medicines are not insulin and work through a different mechanism. If you have questions about how your medicine interacts with other treatments, speak with your healthcare professional.
GLP Trackr helps you log weekly injections, track injection-site rotation, monitor weight and mood, and spot patterns in your data over time. It is a tracking and journaling app — not a medical service — designed to support people already prescribed Mounjaro or Wegovy.