A GLP-1 tracker has one job: put each weekly shot next to what happened after it. That means the dose and the day you took it, any side effects and how bad they were, your weight, and whether you ate enough protein on the days your appetite was low. In ChatRPE you log all of it in ordinary sentences, typed or spoken: "Took my 0.5 mg Wegovy shot this morning, left side of the stomach." "Nauseous after lunch, about a 4 out of 10." "Weighed 203.6." Each becomes an entry in the same history, so one chart can line your weight and your dose up on the same dates.
ChatRPE records and charts what you tell it. It doesn't prescribe, adjust or time your medicine; your prescriber and the medicine's own instructions decide that. What the log gives that conversation is dates and numbers instead of memory.
What to record with each dose
Most GLP-1 medicines for weight, including semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound), are injected once a week. A few are daily pills. Either way, a dose entry is short:
| Field | Example | Why it earns a place |
|---|---|---|
| Date and time | Sunday, 8 a.m. | Answers "when was my last dose?" exactly |
| Medicine and dose | Semaglutide 0.5 mg | Shows which week each step-up happened |
| Injection site | Left thigh | Lets you rotate sites without remembering |
| Notes | Took it a day late, travelling | Explains an odd week later |
The time matters more than it looks. If you miss a dose, what to do depends on the medicine and on how long ago it was due. MedlinePlus, for example, gives 48 hours for semaglutide prescribed for weight loss and four days for tirzepatide. Follow your own medicine's leaflet or your pharmacist. A logged time just lets you check the window in seconds instead of guessing whether it was Saturday or Sunday.
Dose increases usually come at intervals of four weeks or more. Write the new dose into the first entry at that strength, and every chart from then on shows where the step happened.
Logging side effects so they mean something later
The common side effects listed for both medicines are digestive: nausea, vomiting, diarrhea, constipation and stomach upset. "Felt rough this week" is hard to compare across a month. A number per symptom is easier, so ask ChatRPE to save each one with a 0 to 10 severity and a note:
"Log nausea 5 out of 10 this afternoon, after a large fried lunch. Constipation 3."
After a few weeks you can ask how symptoms ran in the days after each shot, or whether they rose after the latest dose increase. ChatRPE reads that from your entries and can chart it, but a chart shows what happened together, not what caused it. Bring the pattern to your prescriber rather than changing the dose on your own reading.
Some symptoms shouldn't wait for a pattern. MedlinePlus tells people taking these medicines to call their doctor right away for ongoing pain in the upper or middle stomach that may spread to the back, signs of an allergic reaction such as swelling of the face or throat, a lump or swelling in the neck, or severe stomach or bowel problems. Vomiting or diarrhea that keeps you from drinking enough is worth a same-day call too, because it can dehydrate you. Contact a clinician for those, not the app.
Eating enough when you aren't hungry
Lower appetite is how these medicines work, and it's also how people end up eating very little protein. A 2025 joint advisory from four obesity and nutrition societies notes that targets of 1.2 to 1.6 g of protein per kilogram of bodyweight a day have been proposed during active weight loss, and that a fixed target of 80 to 120 g a day may be easier to follow. It also recommends strength training at least three times a week, and small meals every 3 to 4 hours with enough fluids when nausea is a problem. Your prescriber or dietitian may set a different number for you.
The same advisory suggests checking intake with food logs or food photos, which is how meals go into ChatRPE. Say what you ate or send a photo of the plate, and it saves an estimate with protein as a number. Ask once for protein to be recorded in grams on every meal, and a day's total becomes something you can check before dinner instead of after. The protein tracker guide covers a dashboard card that shows grams remaining and a reminder that fires only when you're behind.
Ask for daily totals rather than "my average protein": an average over your meal entries gives you an average meal. Fluids can go in the same way ("drank about a litre of water so far"), which is worth doing on the days nausea keeps you from drinking normally.
Reading your weight against your dose
Weigh in under the same conditions each morning and log the number. Daily weight swings by a pound or more from water and food in transit, which the weight fluctuation guide explains, so judge the trend:
"Chart my morning weight since I started, with a 7-day moving average, and my dose on the right axis carried forward between shots."
Carrying the dose forward draws it as a step that holds until the next entry changes it, so each step-up sits directly over the weeks that followed. The weight loss tracker guide covers reading the rate of loss from the trend line, and the monthly weight loss guide covers what a monthly total does and doesn't tell you.
Faster weight loss can take more muscle with it, which is why protein and strength training come up in the advisory. A bodyweight chart can't separate fat from muscle. The guide to losing weight without losing muscle shows how to read your lifts and waist alongside the scale.
A reminder that knows you already took it
Reminders arrive as notifications in the ChatRPE iPhone app, with notifications turned on. A weekly reminder can repeat on your shot day and carry a condition that checks your log before it sends:
"Every Sunday at 9 a.m., remind me to take my shot, but only if I haven't logged a dose this week."
The condition counts dose entries since Monday in your time zone. If you took the shot at 7 a.m. and logged it, the 9 a.m. reminder stays quiet. If you took it and forgot to log it, the reminder still fires, which doubles as a prompt to fill in the record.
Taking it to your appointment
Before a check-in, ask ChatRPE to summarize the period since your last visit: weight trend, dose changes, the weeks symptoms were worst, and average daily protein. To hand over the raw records too, ask for an export of your dose, symptom and weight entries for those dates as a spreadsheet file. The export holds the entries exactly as you logged them, so the visit starts from what happened.
Frequently asked questions
Is there an app to track Ozempic, Wegovy or Zepbound shots?
Several apps are built around a medication schedule. ChatRPE takes a different route: it is a general log for food, weight, workouts and anything else you describe, so the shot, the side effects and the meals land in one history and chart together. You log each dose by typing or speaking a sentence, and a weekly reminder can check whether you already logged it.
Can ChatRPE tell me what dose to take or when to increase it?
No. Dosing, step-ups and what to do after a missed dose belong to your prescriber and your medicine's instructions. ChatRPE records what you took and when, and charts it next to your weight, symptoms and food, so you have accurate dates to bring to that conversation.
How much protein should I eat on a GLP-1?
A 2025 joint advisory from four obesity and nutrition societies notes that targets of 1.2 to 1.6 g per kilogram of bodyweight a day have been proposed during active weight loss, and that a fixed 80 to 120 g a day can be easier to follow. Your prescriber or dietitian may set a different target, especially with kidney disease or another condition that affects protein.
Does ChatRPE sync with Apple Health or my smart scale?
No. ChatRPE doesn't read from Apple Health, scales or other devices. You log weight, doses and meals by typing, speaking or sending a photo, which takes one sentence each.
Should I still count calories on a GLP-1?
Many people don't need to, because appetite does much of that work. Tracking protein and fluids is often more useful, since those are what tend to fall short. If your weight drops much faster than you and your prescriber expected, or you are struggling to eat at all, raise it with them.