Ketogenic Dietary Interventions in Autosomal Dominant Polycystic Kidney Disease (ADPKD)

Patients will follow a classical ketogenic diet for 3 months

Patients will perform water fasting on 3 consecutive days within the first 14 days of each of the 3 months. In one of the 3 months they are - if required - allowed to split the 3 days into periods of 1 and 2 days. On all other days of the intervention period they are allowed to eat ad libitum.

Patients are allowed to eat ad libitum, but will be advised that low salt intake (\< 5-7 g/day) and sufficient fluid intake (\>3 l/day) which is considered beneficial in ADPKD.