Not medical advice. Talk to your provider before using any peptide.
Full disclaimerPeter Attia prescribes GLP-1 agonists clinically and flagged the lean mass loss problem early: 39% of weight lost in the STEP 1 trial was lean tissue. His protocol follows standard FDA titration (0.25mg to 1mg+ weekly) but pairs it with resistance training and 1g protein per pound of bodyweight. This is a prescriber's perspective, not personal biohacking. DEXA scans and metabolic panels required.
Most lose 2–5 lbs (largely water and reduced intake). Some notice nothing. A minority gets significant nausea from week one. The notable early change is psychological: food thoughts become less intrusive.
"Food noise" noticeably quiets. Eating half-portions without effort is common. Weight loss picks up to 1–2 lbs/week. Nausea peaks in the first 2–3 days at each new dose increase, then fades. Constipation typically begins here.
The community "sweet spot." Strong appetite suppression and consistent scale movement. Physical changes visible around week 12. Energy improves. Unexpected and widely reported: reduced alcohol tolerance and cravings. Some users stay at 1.0 or 1.7 mg rather than escalating: sufficient appetite control with fewer side effects.
For educational purposes only. Not medical advice. Consult a healthcare provider before starting any peptide protocol.