On day 9 of an this year’s extended water fast (8.5 days/21), feeling awesome with 86 g/dl blood glucose (meaning gluconeogenisis, a process where the liver uses fat stores to creat glucose, is well underway) and I figured I’d share this study from Toledo-2019:

Safety, health improvement and well-being during a 4 to 21-day fasting period in an observational study including 1422 subjects - PMC

Only few studies document longer periods of fasting in large cohorts including non-obese participants. The aim of this study was to document prospe...