Its the commercialization of this: A Periodic Diet that Mimics Fasting Promotes Multi-System Regeneration, Enhanced Cognitive Performance, and Healthspan http

Its the commercialization of this: A Periodic Diet that Mimics Fasting Promotes Multi-System Regeneration, Enhanced Cognitive Performance, and Healthspan https://www.cell.com/cell-metabolism/fulltext/S1550-4131(15)00224-7 https://www.cell.com/cell-metabolism/fulltext/S1550-4131(15)... You can do it yourself without any kind of kit, if you count calories. I've done it 7 times so far. Due for another one soon.