Fasting Results & Data
Personal fasting data (N=1) from my four documented extended fasts - 7 to 10 days each - plus shared results from others around the world. Compare weight and ketone dynamics across fasts, dive into each fast's full data, or explore my blood biomarkers by category. Use this as a reference point, not a prescription. Everyone's fasting response is unique 😄
My Cross-Fast Data
Weight
Ketones
Collected Fasting Data from Others
Curated from publicly shared results and updated as new data becomes available
Weight Loss Over Different Extended Fasts
Fat Loss Over Different Extended Fasts
My Extended Fasts: Full Data by Fast
10-Day Water Fast
Jul 27 – Aug 6, 2026
Weight lost11.9 lbs (161.6 to 149.7)
Fat lost (Dexa)5.2 lbs
Peak ketones7.9 mmol/L
OthersDexa scans, sleep, RHR, HRV, blood work, videos
👉See full data
10-Day Water Fast
Aug 25 – Sep 4, 2025
Weight lost15.5 lbs (164.2 to 148.7)
Fat lost (Dexa)5.5 lbs
Peak ketones8.0 mmol/L
OthersDexa scans, sleep, RHR, HRV, blood work
👉See full data
9-Day Water Fast
Feb 3 – 12, 2025
Weight lost14.0 lbs (165.3 to 151.3)
Fat lost (Dexa)3.8 lbs
Peak ketones5.9 mmol/L
OthersDexa scans, sleep, RHR, HRV, blood work
👉See full data
7-Day Water Fast
Nov 11 – 18, 2024
Weight lost15.2 lbs (162.0 to 146.8)
Fat lost (Dexa)4.6 lbs
Peak ketones6.2 mmol/L
OthersDexa scans, sleep, RHR, HRV
👉See full data
My Blood Biomarkers by Category
52 blood biomarkers grouped into 10 categories, tracked since 2023 across fasts and refeeds. Tap any category for the full history and details.
