You should start to notice a reduction in appetite within the first month
However, just because a side effect is common doesnt mean its well understood
Retatrutide (LY3437943 12 mg) GLP-1 + GIP + Eli Lilly
doi: 10.3389/fnagi.2019.00088 98 DeaconCFJohnsenAHHolstJJ
Does Retatrutide burn fat
However, the GLP-1R is also involved in adipogenesis in the periphery, which may account for this discrepancy (Challa et al., Glp1r/ mice, animals with deletion of the GLP-1R in vagal afferent/efferent nerves, Phox2b-Cre Glp1r flox/flox , as well as animals with a deletion of the GLP-1R in the CNS, nestin- Cre Glp1r flox/flox , maintain a similar body weight and food intake as control mice on both chow and HFD (Sisley et al., 2014)