What to Track During Your First 12 Weeks on a GLP-1

Author : GLP1 App | Published On : 04 Sep 2026

The first three months on a GLP-1 receptor agonist decide whether the treatment sticks. Doses escalate, appetite changes week to week, and side effects arrive and fade on their own schedule.

A short written record fixes the memory problem. Five things are worth logging. First, the dose and the date you took it: GLP-1 medicines are weekly, and titration schedules differ between semaglutide and tirzepatide, so writing the injection date down makes a missed or doubled dose obvious. Second, the injection site: rotating between abdomen, thigh and upper arm reduces local irritation, and a log is the only reliable way to know where the last shot went. Third, weight, measured the same way each week; daily weighing produces noise, while a single weekly figure gives a trend your clinician can read. Fourth, side effects and their severity: nausea, reflux, constipation and fatigue are common in the days after a dose increase and usually settle, and noting when they start and stop shows whether a symptom is dose-related. Fifth, appetite and food tolerance, because many people find certain foods stop sitting well at higher doses.

A paper notebook works, and so does a purpose-built tracker such as GLP1 App, which keeps doses, weight, injection sites and side effects in one place and produces a summary for your next review. Whichever you choose, the habit matters more than the tool.