When Rafael started on a GLP-1 agonist peptide, he expected to lose weight and gain energy. What he did not expect was to cry for no apparent reason in the third week, feel an anxiety that was not usual for him, and want to quit things that used to bring him joy. Rafael was not losing his mind. He was going through something that happens more often than doctors used to admit.
Studies published in recent years, including research in the Journal of Clinical Endocrinology & Metabolism and the International Journal of Obesity, show that a significant share of GLP-1 users report mood changes in the first weeks of treatment. These are not isolated cases. They are not overreactions. They are a real physiological response, and understanding what is happening in your body is the first step to getting through this phase without losing yourself in the process.
If you are feeling this right now, know that there is a way to track what is happening with you day by day, and to bring concrete information to your next appointment. PeptPro lets you log mood and symptoms with date and intensity, building a history that shows patterns and trends. Download here.