(not me BTW)
Unfortunately, I fall into that category all too often. I get myself all hyped up to follow a certain eating plan, and when I don't see the numbers change in like.....2 days, I say "screw this" and give up. It's not rational, I know, but there it is. And that's why D-I-E-T-S usually fail: they're a short term way of drastically changing the way you eat in the hopes you'll lose a few pounds. But what about when the diet is finished?
A permanent lifestyle change is what needs to happen, not some 6-week fad. [gasp] What? You mean.....I have to change the way I live? And think? And behave? I can't go back to eating like I used to once I'm done?