> A lot of people will tell you that you can't be
> in ketosis and compete in such sports, but Phinney's research shows they
> are dead wrong.

I'd wager that most of those nay-sayers are going by anecdotal "evidence".
The marathoners I know would be so skeptical about low-carb running that th
e moment they felt the slightest drop in energy levels it would be back to
carb-loading. They are the very definition of "creatures of habit".