What are lipolysis testing strips?
Lipolysis testing strips (LTS) measure the ketones—the markers that can indicate that your body is in lipolysis and the secondary process of ketosis—in your urine. The strips will change pink or purple, depending upon how many ketones are there. The more ketones you excrete, and therefore the greater degree ketosis you are in, the darker the color. You don’t have to use LTS, but doing so can be an extremely convenient aid to doing Atkins. (Taken from Atkins.