My observation is that the fat people who become "normal" size and maintain that size for more than just a few years, manage to do this through doing the hard work it takes to continually and consistently oppose the natural physiological desires of their "reduced obese" bodies.

Rather than allow their bodies to tell them how to eat, they use their minds to overrule those bodies and consciously choose to eat food containing far less calories than their individual body desires.  Forever … one-day-at-a-time. 
It is possible, but it isn't easy.  
See Running Down the Up Escalator.

First, let me clarify that my definition of a "fat" or "obese" or "reduced obese" person is not someone who merely hangs somewhere around their BMI Obesity border. Meeting that criteria requires a person to put in more than two or three years at a weight of … at least …. 20 to 50 pounds above their BMI Obesity border. To me, those who fail to meet that requirement are merely "overweight", a condition that is often temporary for them. Although many of these people term themselves as "fat" or previously obese, in general, they appear to have a very limited understanding of true obesity or the fat condition.

An overweight person tends to think that because they went on their first diet and easily lost and kept off 10 or 20 lbs, then an obese person, on their 50th diet can do the same thing for a longer time and lose and keep off 100+ lbs. This attitude is easily seen within the numerous online diet forums that are full of overweight or formerly overweight people who are eager to offer copious advice and personal judgments along these lines to people who are obese or reduced obese.
This unequal comparison … apples to oranges … often confuses people who are truly obese or "reduced" obese and frequently results in negative self-judgments which are just wrong.

So, applying this clarification, There are psychological desires (of the mind), and physiological desires (of the body). What does it take to continually and consistently use one's mind to oppose the natural physiological desires of one's body? Is the ongoing difficulty of opposing those desires worth the effort that it takes to be "normal" weight?

This is a Judgment call that depends   
on the severity of the individual's mental pain which is caused by the culture's fat-bias, and the severity of the individual's physical pain which is caused by denying to one's own obese, or reduced obese body, the food substances which that body believes it needs for survival. 

We must each decide this for ourselves. Thus far, for me personally, the balance tilts toward accepting the physical pain to avoid the mental pain. However, my personal dieting history, including the past 8+ years of experiencing the difficulty of maintenance …. even though I've consistently continued my positive dieting behaviors …. have changed my perspectives on the feasibility of dieting and maintenance, especially for the "morbidly" obese.

Here's an excellent article by a healthy, "morbidly" obese person who discusses her own relationship with her physical body.

Me, My Body, and Relationship Counseling
           by Ragen Chastain www. danceswithfat

My body and I used to have a seriously bad relationship, and looking back it’s not that surprising. I grew up the daughter of a Marine and a multi-sport athlete. If I fell and ran to my father, I could expect to hear “Are you hurt or are you injured?” Hurt meant that it was time to suck it up; injured meant you were going to the doctor. He, along with coaches and dance teachers told me to “walk it off”, “play through the pain” and that “pain is fear leaving the body.”

I was told over and over again that my body was just a limitation to be overcome through mental toughness  – blocking out or working through the pain. It didn’t come naturally at first – I seemed to have an innate sense that my body deserved better than that, but at some point I turned a corner and got really good at thinking of my body as something separate, and something to be ignored.

I worked through stress fractures, and an IT band so tight it felt like it was going to rip in half, pulled muscles, sprains, strains, jammed fingers, knee injuries and a host of other issues. I ignored my body when it asked for food and hydration, and I scoffed at it when it asked for rest.

I became a compulsive exerciser and I started to look down on my body even more. I refused to give it what it needed and pushed it beyond reasonable, and then unreasonable, limits.  When my body would finally bend or break under the strain, I treated it with utter contempt. I believed that my body was just a “meat sack,”  a collection of muscles and bones that were trying to limit what I could do. I believed that my mind had to be stronger than my body and I felt triumphant when I ignored my body’s signals and “pushed through.”

If I ever had an acquaintance who treated me the way that I treated my body for all those years, I would never speak to them again. In fact, I would never have let it go on that long. But through all of this my body stuck with me (even though I wasn’t giving it the food, hydration, or rest it needed), my body continued to support me. It never gave up on me. If my body could talk, all it would have said for years would have probably be something like “&$*#(*@ *$*&*#(*$  and for the love of pete can we please take a nap?!” but I wouldn’t have listened.

We live in a culture that preaches that our bodies are limitations. I still think of my body as something separate (and I know and honor those for whom that doesn’t work.)  But it’s different now -  I consider my body as a cherished friend.  Think of everything your body does for you without you even asking: breathing, blinking, heart beating… every cell in your body is getting blood right now and you’re not even thinking about it.

I don’t know about you, but there are days when I am too distracted to focus on a game of solitaire. I’m pretty sure that  if I was consciously in charge of breathing and blinking and heart beat I would have been dead in middle school when I got my first Walkman and regularly walked into stuff because I was so into the soundtrack of A Chorus Line.

I’m not saying that pushing your body is always wrong, you have to decide what works for you. I know I’ve danced through plenty of injuries. What I’m suggesting is that you consider treating your body like you would treat a friend.  I can’t even count the things that my best friend has done for me, even though he might rather have been doing something else (hello marathon!) because he’s my best friend and he loves me and I asked. It’s the same with my body.

I’m privileged to be temporarily able-bodied and I learned more about that when I had a neck injury last year and lost the use of my right arm for almost three months.  I learned that even if my body has limitations, that doesn’t make my body a limitation and that I worked best when it was me and my body against a problem, and not me against my body. I don’t know what is in the future for me and my body and like any relationship, my body and I have to keep up the communication and we have breakdowns, but we’ve come a long way since our days of giving each other the silent treatment, and I’m feel like our relationship is healthier than it’s ever been.

My online Scrapbook, which I call DietHobby, contains articles about the diet subjects on my mind, which are organized in its ARCHIVES to provide me with future reference. Recently I've been reading, and referring to, books and articles about Fat Acceptance. The article above is one of those which I find valuable enough to scrapbook here.  

    

                                

I am definitely the best witness of my own experience. For a lifetime I’ve examined myself, my behaviors and how they affect my body. I’ve gathered evidence, researched the issues, analyzed the data, and formed conclusions about myself which are based on the relevant evidence.

I’ve chosen to view dieting as a hobby, and for many reasons, I plan to continue my personal involvement in that activity.

However, I’m thinking that it is time to end my relationship with Fat Sigma. While doing so, I’d like to make my reasons for the breakup clear. So, I’ll reverse the ususal breakup statement which is shown in the picture here, and say to the Fat-Biased-in-Society:

“It’s not ME, it’s YOU.”

The following article is one that I wish I had written myself.

They Don’t Know Fatties
          by Ragen Chastain  -  www. danceswithfat

I was thinking today about how often we are told that, as fat people, everyone who is not fat is a better witness to our experience than we are. How often someone is considered an expert in weight loss, or becoming thin, or being not fat simply because they happen to be thin.

We are told that we’re not competent witnesses to what and how much we do or should eat, or how much we do or should move. Our bodies are held up as proof that we must be lying or deluded and that we can’t possibly know, or be doing, what’s best for us. We are told that, because of how we look, we should be subject to more scrutiny than those who don't look like us, we should lose our right to speak for ourselves, we should be stereotyped and stigmatized and bullied and war should be waged against us - that the way we look means that we shouldn't get to choose how highly we prioritize our health or the path we choose to get there like everyone else does.

We are forced to listen to people like Jillian and Bob on The Biggest Loser prattle on insufferably about how fat people think and what fat people do and what it's like to be a fat person as if we are all walking around under the guide of the same brain just because we share a single physical characteristic. We, and the rest of society, are told that everyone from Dr. Phil to Dr. Oz to random people on the internet know more about how and why we think and act, and what it's like to be us, than we do.

When we tell people that constant social stigma is damaging to our health, we are told that it's for our own good and we should be grateful to hear that our bodies are socially unacceptable more often and more aggressively than we already are. When we tell people that we are not suffering from obesity, but are suffering from stigma and oppression, we are told that we are responsible for solving bullying and social stigma by changing ourselves.

We are told that if we don’t accept someone else’s account of how we think, eat, and exercise, then we’re “in denial”. It’s a system designed to make us powerless. Our oppressors (well-meaning or otherwise) get to tell the world who we are and what we do and how we think and what it's like to be us, and if we disagree they call us liars, and claim that we are not capable of speaking for ourselves. Not only are we denied a place in discussions about us, we are actively silenced and shouted down when we attempt to speak up. People have managed to successfully stigmatize and stereotype our bodies, and then argue that those stereotypes make us unqualified to advocate for ourselves. Successful stigmatization and oppression should not become self-perpetuating by virtue of self-justification. In other words, this is seriously fucked up.

So if you start to question yourself, to wonder if Dr. Oz really is a better witness to your experience than you are, then I implore you to stop and consider this possibility: You are not wrong, it is not you. It’s a system set up to make us feel that we are not the most credible witnesses to our own experiences. It’s wrong, it’s oppressive, and it shouldn't happen. The next time somebody feels the need to tell you “something you don’t know” about being you – your body, lifestyle, behaviors, thoughts or health – feel free to tell them (out loud or in your mind) that it’s not you, it’s them; that you know everything you need to know about being you, and when you want their opinion they will be among the very first to know.

The following Poem expresses the pressure women feel
to take up less and less space,
to be quiet,
to be small
and to eat sparingly.

"Shrinking Women" by Lily Myers  

               We are not all the same.

I totally agree with the below quoted Facebook post by Kate of This is Not a Diet - its' your life. 

"When someone says they have come to peace with their body, whether it's loose skin, extra weight, cellulite, stretch marks or any other perceived "flaw", let them have their peace. If I say I'm happy with my weight, I don't want you to give me your ideas for weight loss solutions. If I say I am at peace with my cellulite I don't want you to tell me it can be removed with a magic cream. If I say I love my thick thighs, I don't want a list of exercises to slim them. And if a person says they have come to terms with their loose skin and see it as a reminder of all they have been through, not a flaw, they really don't need you to tell them to have surgery.

I think a lot of people get so wrapped up in their own body issues, they can't imagine how any person can really make peace with "flaws" such as these. They believe the person must be lying or fooling themselves. This is a false perception.

Making peace with your body isn't about having a flawless body, it's about how you feel in your mind. There are thin people who hate their bodies and fat people who love their bodies and every variation in between. Don't make the mistake of equating fixing your body with fixing your self-image. If surgery is something you personally want to do, that's your choice. But it's not everyone's choice. Let us enjoy our peace, in peace.