I always assumed that fat people merely lacked discipline or were too self-indulgent or had psychological problems causing them to over-eat, e.g. fear of sex.
Not true.
My metabolism changed to the extent that I became 40 lb. overweight.
My systolic blood pressure was regularly in the 140's, sometimes up to 160's. Regular antihypertensive medication brought it down into the 130's.
For years, upon arising every morning, I have weighed, naked on a physician's office scale, and taken my blood pressure, the average of six readings
I could not get the weight down despite excellent medical help, serious exercise, white-knuckle starvation, a seriously attentive wife, professional weight-loss programs, and locking the refrigerator and pantry doors. It was impossible.
My personal physician prescribed Mounjaro. My weight began dropping immediately. Over the course of three months, I easily lost 35 lbs.
Furthermore, my systolic blood pressure became normal without any medication. It is now regularly in the 120's and sometimes 115-120. Diastolic is regularly in the 60's or 70's. That's with NO antihypertensive medication.
There are side effects. My hands and feet feel disturbingly cold and unpleasant most of the time. I sometimes feel weak. I have had disturbing episodes of orthostatic hypotension.
Nevertheless, the benefits have outweighed the problems, and I am continuing, under the careful supervision of my personal physician.
Good luck. I can eat anything I want as much as I want, and not gain a pound.