"Calories absorbed do not necessarily equal calories eaten."

EXCELLENT point and I thank you for mentioning this...

A less efficient digestive system "might" be one of the components of the high-metabolism "hard gainers" and is a valid point...

Phelps' reference here is solely to illustrate the potential peak power of G-Flux - not everyone can or should eat 8K calories.

Lemme see if there is data on Phelps' current retirement eating. Thanks for reading and responding and Happy New Year AJD