13. The CKD Is Muscle-Sparing
Some argue the standard keto diet causes muscle loss over time, whereas strategic carb refeeds on a CKD may better support muscle growth and prevent protein breakdown. The anabolic hormone insulin is suppressed on very low-carb diets.
Periodic carb feed days on a CKD boost insulin levels, allowing more amino acids and glucose into muscle cells to facilitate repair and growth. Insulin also reduces muscle protein breakdown by inhibiting enzymes that degrade protein.
This muscle-sparing effect of CKD carb cycling aids athletes, bodybuilders, and anyone seeking to maintain or build lean muscle mass while following a ketogenic diet most days of the week.