I love this guy. He is a Professor of exercise physiology in Cape Town. His early work was all on how important carbs are. He has done a 180.
Here is a Ted Talk. The first half is exercise related that may or may not be your thing.
But the second half is great. I follow him in Twitter @proftimnoakes
I get a lot of good articles from this tweets.
And even more awesomeness. His book Lore of Running he has refuted carb loading and says you should do fat loading for performance.