CKD Cyclical ketogenic diet. CKd is used by bodybuilders to maintain muscle and loose fat. After doing LC for a long time a persons thyroid activity slows down and so does metabolism, then weightloss. In CKD one is weight lifting and muscles use stored glycogen for energy. At the end of a 5 day "induction" type diet. We actually kick ourselves out of Ketosis and switch to a low fat high carb diet for 36 to 48 hours. The diet adds controlled amounts of Glucose (simple sugars) at an amount a person can absorb into their muscles therfore refilling muscle glycogen.
Too much sugar bleeds into fat storage. a person doing CKD will typically gain 6-9 pounds in 36 hours but will lose that + 1 pound by the end of the week.
For more info check out the CKD/ Body Opus Sub Forum.

Jag