There are a million fasting protocols out there, but some have better research behind them than others. Dr. Valter Longo, head of longevity at the University of Southern California, is a giant of gerontology and cancer research. His fasting protocol, called the fasting mimicking diet, is designed to help "everyday Joes" safely implement a 5 day fasting protocol from the comfort of home. In this episode of the podcast, John and Kristin discuss John's recent experience with Dr. Longo's fasting mimicking diet plus the purported benefits, which include cellular regeneration, cancer prevention, and the regeneration of stem cells.