You wont get enough nutrition to allow your body to build muscle mass
Tommasini, R
Plus, the potential loss of lean mass that often comes with rapidly losing weight can be a significant concern
Key timing considerations: Side effect profile tends to be somewhat milder than semaglutide, which may reduce the importance of sleep-through timing Same 48-hour minimum spacing rule applies if changing injection days Pre-filled pen format means no reconstitution time, making spontaneous timing adjustments easier Many dulaglutide users report minimal side effects after the first month, at which point timing becomes purely a convenience decision Retatrutide (weekly injectable, investigational) Dosing frequency: Once weekly Half-life: Data from Phase 2 trials suggest approximately 6 days Peak concentration: Approximately 24 to 72 hours after injection Recommended timing approach: As a triple agonist (GLP-1/GIP/glucagon), retatrutide may produce a different side effect profile than pure GLP-1 or dual GLP-1/GIP agonists

So today, we want to slow down and actually answer the question properly: what are these peptides, does anything about that online chatter hold up, and why are dermatologists and skin cancer organizations telling people to stay away
Corporate announcement and product information, 2025