Dr. Valter Longo says you need only 5 days of fasting. https://www.ncbi.nlm.nih.gov/pubmed/28202779 https://www.ncbi.nlm.nih.gov/pubmed/28202779 Also, it seem

Dr. Valter Longo says you need only 5 days of fasting. https://www.ncbi.nlm.nih.gov/pubmed/28202779 https://www.ncbi.nlm.nih.gov/pubmed/28202779 Also, it seems to regenerate β cells for Type 1 diabetes humans, although I would imagine the "regular" fasting would do that, too since it's a more extreme version of the FMD: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5357144/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5357144/ Some interviews with him on it (there are more on youtube): https://www.youtube.com/watch?v=d6PyyatqJSE https://www.youtube.com/watch?v=d6PyyatqJSE https://www.youtube.com/watch?v=evGFWRXEzz8 https://www.youtube.com/watch?v=evGFWRXEzz8 https://www.youtube.com/watch?v=vdjGgrh5zSk https://www.youtube.com/watch?v=vdjGgrh5zSk