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Although they've all been made before, over and over and over again, in Salon and every-freakin'-where else--but the main problem with this article (as others have pointed out) is that the woman she uses as her reference point doesn't appear to be obese. She has a flat stomach, toned arms, no cellulite (though the photos could easily have been Photoshopped to clean up flaws, so there's no guarantee there) so even if she lost 30 lbs, she'd probably still have a big butt (just a smaller big butt). Personally, I don't believe what was said about her starting at "120 lbs" and "chugging supplement shakes". This is a woman who works out to keep her main asset toned.
Now, what I COULD see as a point is "black and Hispanic woman are using a) women like this and b) their men's preferences as an excuse not to lose weight or at least attempt a healthy lifestyle". Which is sorta said in the article, but lost in the greater problem of using this PARTICULAR woman as an example of obesity.