62M, former athlete. When my thyroid failed due to Hashimoto's after severe EB virus at age 33, my weight increased from 182 to 239 in 6 months. No change in diet or bicycle racing/training protocol. Just a metabolism controlled by a pill, instead of a healthy system.
Being dedicated, I found a diet that worked. One salad with fish per day, no breakfast, no dinner, no dressing, no carbs. 800 calories. I was able to get back down to my athletic weight. HOWEVER, that's nowhere near enough to fuel normal function, not to mention any form of athletic activity.
So up the calories went and my weight, and then down again, over and over.
In more recent years the best I've been able to achieve on my own was 220Lbs on OMAD, carnivore. (one meal a day)
My point is this, sure an ideal weight is possible with abject starvation, er, ah, I mean dedication. But for many of us, it comes at the cost of inadequate nutrition and inadequate calorie intake for athletic activities of any sort.
I started on Reta in December 2025, weighing in at 262, having ballooned up from abject starvation levels of 220 pounds by eating more normally. I'm now down to my goal weight. Without any of the malnutrition issues of 800 calorie diets.
In fact it is rather nice to be able to eat normally. I even had a double Filet o Fish for lunch today, without worry of gaining 5 pounds overnight as would happen before.
Conclusion: I have true metabolic dysfunction. Retatrutide is the antidote.