I haven't bothered much with this thread to date but just had a browse through some posts.
It seems to me that if a person is overweight they need to know how they got that way, then implement a feasible plan to return to a healthy weight - assuming they can remember a time when they were actually at a healthy weight, of course.
Here's my take on my own situation
from my blog - basically amounts to some food discipline and exercise, and doing both until it becomes 'normal' again. Once you are fit and healthy and a reasonable weight the occasional big meal, or treat, or a week (or two...or three ?) break from regular exercise are easily accommodated and you can bounce back quickly.
As a postscript to the link above (which is 12 months old) I have dropped 2-3 kgs since January (so now about 77kgs) simply by eating less (usually no) dessert, hardly any cheese, and doing more 'easy' rides after which I'm not so hungry as when I do a big or hard ride.
Congrats on the weight loss, but your graph shows exactly the problem most people have with sustained weight loss. The sustaining part.
It's one thing to make an effort, lose some kilos, get healthy... maintain it for a couple of months or even years... then slip back into old ways and watch it all come back, with interest. You've done that a few times.
Any weight control strategy that involves discipline is, IMO, doomed to fail. It has to just become the normal way of life that you do without any ongoing intent
Sadly, not many people discover such a strategy. And we all end up yo-yoing.
I peaked at about 95kg in my early-mid 30s. Dropped and stabilised about 82-84kg for a few years, then crept back up to 88kg, coincidentally about the same time I started taking an interest in beer
. Now I'm back under 85kg. I'm hoping I can keep doing what I'm currently doing, just as a way of life without any intention of doing this to lose weight
. I'd like to be under 80kg...