I dunno, I know two very healthy women, one of which is my wife, who lost weight lickety split after childbirth. It wasn't easy, but they did it. Not to offend any women here, but it has been my experience that men are simply better able to have the mental toughness to make sacrifices and to stay focused and motivated. The women I know who have this same mental toughness have been able to lose weight just as quickly as any man, but there's just not very many of them. This is partially why I tend to be a little harsh and straightforward when it comes to weight loss attitudes. I've seen what women can do when they get aggressive about it. It would amaze you. The men and mentally aggressive women don't mind bluntness, and they're the ones who are usually the most successful.