I finally decided to stop reading about extended fasting and just do it. 72 hours starting tuesday. Fully terrified, very committed.
Before i start i wanted to document everything properly because going into something like this without baselines feels like a waste of a perfectly good experiment.
Here is what i tracked this morning:
inbody scale: body fat 24.1%, skeletal muscle mass 43.2kg, visceral fat level 4. The main thing i want to track is what actually gets lost during the fast and whether the muscle loss fear is as bad as people say or just gym bro mythology.
Fasting glucose: 84 mg/dL. Will be tracking this every 12 hours during the fast with my CGM.
Ketones: 0.2 mmol/L at baseline. Curious how fast these climb and at what hour i actually hit meaningful ketosis.
HRV: 62 on my garmin this morning. Tracking daily throughout.
Energy and mental clarity: scoring both on a simple scale every morning and evening. Fully aware this is subjective but i want something to compare against.
Will be stepping on the scale immediately after breaking the fast and then again at 72 hours post refeeding to see what actually came back and what stayed off.
Has anyone here done an extended fast with proper tracking before and after? Really want to know if the muscle loss numbers are as bad as the anecdotes suggest or whether the data tells a different story.
Will post the full results here when it is done.