Dieters' self-image suffers as a result of dieting--at least according to this study
."It has been well documented that dieting virtually always fails long-term -- about 90 to 95% of the time -- and that dieting drop-out rates are high. But this study also poignantly illustrated that...in the end dieting actually worsens women's health and quality of life...there was nearly 200% more bulimia and eating disorders among the dieters compared to the nondieters. The dieters' self esteem and depression had also significantly worsened, which isn't surprising given most dieters are left with an overwhelming sense of failure. And the psychological and physiological effects, as well as eating problems, resulting from calorie restriction itself have been clinically documented."
These statements seem a little suspect to me. First, I don't think it's true that diets have a 90-95% failure rate, unless you are very strict about defining "failure" as any weight gain whatsoever. Secondly, if you lose weight slowly and healthfully (i.e., don't starve yourself) you avoid a lot of the problem involved with calorie restriction, and reap all the benefits. And finally, at lest personally, I had physical and psychological problems before
I ever started dieting, which is how I became overweight in the first place!