As a personal trainer,  I always have clients tell me, "well I'm doing good,  I've cut out all carbohydrates and don't eat any bread or pasta"
This "Low" carb diet basically has a death grip on the fitness and health industries right now,  and I don't really see it changing for a while.  Case in point,  the Glycemic Index.  Its basiaclly THE standard of judging food, I too thought this was the way to go for weight loss.
After working with a famous nutritionist who is less swayed by the media and more so by the research,  I realized the GI might not be the best approach.  And the evidence shows it isnt. 
The GI was designed in the 80's to help diabetics blood sugar in check, it was never intended for weight loss.
This article by Dr Len Kravitz,  who is THE authority on weight loss goes on to show that there is no difference between eating a low carb or high carb diet, when both groups are calorie restricted over a years time.
http://www.drlenkravitz.com/Articles/glycemicDLK.html
Really interesting, but goes back to the point that if you are exercising,  you don't have to cut out bread,  just cut overall caloric intake moderately. 
and eat alot of vegetables and fruits, and lean meats. 
It goes back to the basics.
Greg