The food obsession piece is the part that doesn't get talked about clearly in most of these conversations - the addiction framing is a much more honest description of what a lot of people here were actually dealing with, even if they wouldn't have used that word before starting the medication. The quiet you're describing in the OP is specifically the relief from that compulsive noise, which is different from restriction or willpower. For someone who's already worked the recovery path for the food side directly, Reta changes the texture of that work - the physical appetite suppression removes one layer of the pressure, but the obsession piece you're identifying is worth watching separately from the hunger piece. The starting dose concern is worth taking seriously; 0.5mg as a starting point gives more control over where the side effects land while you figure out how your system responds, and moving slower is always available even if you started at 1mg.