An injection log tells you when you took your medication. tr8ck connects that injection data to your sleep, mood, appetite, weight, and energy — so you understand what your GLP-1 is actually doing across your whole week, not just on shot day.
To track GLP-1 injections, log each dose, date, and site, then connect them to weight, side effects, sleep, and mood. tr8ck records your injection schedule and uses AI to show how each shot affects everything else. Free covers 4 modules; Pro is $4.99/mo, Premium $6.99/mo adds AI insights.
Most injection apps capture the date. A useful injection log captures much more — and connects it to everything that happens after.
Log the exact date and approximate time of injection. This anchors all subsequent tracking — nausea on day 3, energy on day 5, and appetite returning on day 7 all become meaningful when mapped back to injection day.
Log your dose at each injection — especially important during escalation phases. Your data history at each dose level tells you and your prescriber exactly how you responded to each step up, and whether side effects improved with adaptation.
Rotate between abdomen, thigh, and upper arm — and vary the specific location within each zone. Logging your last site prevents repeated injection into the same spot, which causes lipohypertrophy and reduces absorption consistency.
The three main injection zones should each be used roughly once every 3 injections. Within zones, rotate at least 1 inch from the previous spot. tr8ck shows your last 3 injection sites so the next choice is always obvious.
A weekly reminder on your chosen injection day prevents missed doses. Missing a GLP-1 injection by more than 2 days can cause side effects to partially reset and appetite to temporarily return — both avoidable with a simple reminder.
Injection data becomes exponentially more useful when connected to sleep, mood, appetite, weight, and nutrition logged in the same app. tr8ck's AI layer does this automatically — no manual correlation required.
GLP-1 medications don't work uniformly across the week. Understanding the cycle — and tracking against it — turns unpredictable symptoms into a manageable rhythm.
Injection day feels normal. Side effects rarely begin immediately. Log your injection, eat a standard meal, and start your daily health log as usual. This is your reference baseline for the week.
Peak nausea, fatigue, and GI symptoms. Eat small, protein-rich meals every 3–4 hours. Avoid fatty, greasy, and spicy foods. Gentle walking is fine; skip high-intensity workouts. Log every symptom and every meal — this data reveals your specific triggers within a few weeks.
Best days of the week. Appetite suppression is still strong but nausea has eased. Energy typically improves. Schedule your hardest workouts here and prioritise hitting your protein target. Log these days carefully — they often show the clearest pattern data.
Pre-injection day. Some users notice appetite returning or food noise increasing. Others feel exactly the same as days 5–6. Track your hunger and mood on day 7 each week — if wear-off is consistent and significant, it's a data point worth discussing with your prescriber about injection timing.
Lipohypertrophy — hardened fatty tissue from repeated injections in the same spot — is more common than doctors report, because patients often don't know it's happening. The consequences are real.
| Injection zone | Absorption rate | Rotation note |
|---|---|---|
| Abdomen | Fastest — most consistent | Stay at least 2 inches from navel; rotate quadrants |
| Thigh (outer) | Moderate | Use outer upper thigh; avoid inner thigh and knee area |
| Upper arm (outer) | Slightly slower | Best injected by someone else or with auto-injector |
A hard, rubbery lump under the skin at an injection site. It may be painless, which is why users often keep injecting there — it hurts less. But injecting into lipo significantly reduces and unpredictably varies medication absorption.
Medication injected into lipoatrophic tissue absorbs slowly, inconsistently, and incompletely. This can make your medication appear less effective and produce unpredictable side effect timing — problems that disappear once site rotation is corrected.
tr8ck logs your last injection site with each entry and displays your recent history. Before each injection, you can see exactly where you last injected — making correct rotation automatic rather than something you have to remember.
Most GLP-1 users track injections in one app, weight in another, calories in a third, and mood nowhere. The connections between these data streams are where the real insights live.
GI symptoms from your injection disrupt sleep in the days following. When injection data and sleep data are in the same app, the correlation emerges automatically. You see exactly which injection days correlate with your worst sleep — and whether it's improving.
Mood often dips in peak side effect days and improves toward the end of the injection cycle. Without both data streams in the same app, this pattern stays invisible — and users attribute mood changes to unrelated causes.
Appetite suppression is strongest mid-cycle and weakest on day 7 for many users. Logging hunger ratings alongside injection dates reveals your weekly appetite rhythm — critical for planning meals and hitting protein targets on the right days.
Your weight trend plotted against your dose escalation history shows exactly when the medication started working for you — and at what dose. This context makes plateaus and slowdowns interpretable instead of alarming.
In tr8ck, your injection log is the anchor that every other module connects to. Sleep, mood, nutrition, weight — all mapped against your injection cycle automatically.
Quitting smoking is a goal you can track in tr8ck, not a separate module.
Log the date, time, current dose, and injection site with each weekly injection. Set a recurring reminder for your injection day. tr8ck's medication module handles all of this in a single entry, then connects your injection history to every other health metric you track — sleep, mood, weight, nutrition — automatically.
The best rotation tracker shows your recent injection sites so you always know where not to inject next. tr8ck logs your injection site history and displays your last three entries, making correct rotation effortless. Rotating between abdomen, outer thigh, and upper arm — and varying within each zone — prevents lipohypertrophy and ensures consistent medication absorption.
GLP-1 medications produce a predictable weekly cycle of appetite suppression, side effects, and energy changes relative to injection day. Logging mood, appetite, and energy alongside injection dates reveals your personal cycle within 3–4 weeks — showing your best and worst days, and whether food noise returns before your next injection.
Link your injection to a fixed weekly routine — same day, same time, same activity. tr8ck sends a weekly reminder on your chosen injection day. Missing a dose by more than 2 days can partially reset side effects when you resume and allows appetite to return temporarily — both easily avoided with a reliable reminder.
Yes — that's exactly what tr8ck is built for. Your injection log is connected to sleep, mood, nutrition, exercise, weight, water intake, and more. The AI layer correlates your injection history with all other metrics automatically, surfacing patterns that no single-purpose injection tracker can reveal.
Free to start. Works for Ozempic, Wegovy, Mounjaro, Zepbound, and compound GLP-1. No credit card required.
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