Originally Posted by
bobthib
IF you are a serious professional racer, these diets are probably not for you. If you are a regular Joe (or Fred) even at high level, it may be something to consider.
If you do any type of competitive rides at any level these diets are not for you. They may allow you to ride at submaximal efforts but will involve a significant performance hit for the type of intensity you would see in a race or even a competitive group ride.