"Hereditary and relatively common, polycystic kidney disease (PKD) has long been thought to be progressive and irreversible, condemning its sufferers to a long, slow and often painful decline as fluid filled cysts develop in the kidneys, grow and eventually rob the organs of their function. Progress toward finding a cure has been sluggish, with only one drug proven to slow — but not stop — the progression of PKD. But now, thanks to research conducted by a UC Santa Barbara team, a solution may be no farther than the end of your fork. Diet, they discovered, could hold the key to treating PKD. … Ketosis, the underlying metabolic state of popular diets such as the ketogenic diet, and, to a lesser extent, time-restricted feeding (a form of intermittent fasting), has been shown in the group’s studies to stall and even reverse PKD."