That is just silly, badly researched crap. The muscles of LCers who exercise a lot learn how NOT to need so much glycogen, and how to rely on FAT as a primary fuel.

What utter drivel that carbs are absolutely required to run a marathon. Have NONE of those people ever heard of glycogen-sparing?

I think LC marathoners would have an advantage over carbers because there's a heck of a lot more stored fat on the body than stored glycogen!

I agree, Neeam, those poor, sore carb-loaders! LOL