Originally Posted by Cassidy Drake
Ummmm, actually that is very far from the truth, as we have discussed here quite a few times. Adaptation period is key.
Fat adaptation is great in theory but the reality is it does nothing for athletic performance where glycogen stores are always the main limiting factor. Even Phinney's study Ketogenic Diets and Physical Performance
came to the conclusion that "performance is limited by the low muscle glycogen levels induced by a ketogenic diet, and this would strongly discourage its use under most conditions of competitive athletics"
. The bottom line is that the only people who really benefit from fat adaptation are arctic explorers and anyone else who has to go for very long walks in very cold climates.
"Fat adaptation" for athletic performance: the nail in the coffin? - Louise M. Burke.