Biochemically speaking, ketosis is starvation. Once you exhaust your livers supply of glycogen (within 24 hrs usually) you begin the metabolic changes to gear u

Biochemically speaking, ketosis is starvation. Once you exhaust your livers supply of glycogen (within 24 hrs usually) you begin the metabolic changes to gear up to burn muscle for ketogenesis. This involves secretion of enzymes that will break muscles down. I would presume, however, that when adequate (or some) caloric intake is maintained, esp in the form of amino acids, that this liberation of aa's from muscle is somewhat inhibited