If you know nothing, I suppose this could be useful to establish some sort of base of carbohydrate knowledge, however, it seems like the more you learn about BB nutrition, the more you stray away from the basics you initially learned (to a degree). A good amount of the info could be debatable, but you could find pros' diets with conflicting nutritional ideals, but they are all in the end successful. IMO, it seems that about a lot of the knowledge we could be splitting hairs to death or it is at least largely on a person to person basis how these foods affect someone's body. Like I initially said, it does provide a base of knowledge and everyone must establish some sort of foundation to build on before progressing further.