that is necessary to prevent loss of lean muscle tissue [1]." Clearly, this is an incorrect statement since catabolism of lean body mass is reduced by ketone bodies (possibly through suppression of the activity of the branched-chain 2-oxo acid dehydrogenase), which and probably explains the preservation of lean tissue observed during very-low-carbohydrate diets. Unfortunately, the leading exercise physiology textbook also claims a "low-carbohydrate diet sets the stage for a significant loss of lean tissue as the body recruits amino acids from muscle to maintain blood glucose via gluconeogenesis [2]." Thus, it is certainly time to set the record straight.