> The more studies pile up, the less it seems to matter the length of a given fast, but more the total time spent in a fasting state relative to a fed state. Y

> The more studies pile up, the less it seems to matter the length of a given fast, but more the total time spent in a fasting state relative to a fed state. Yes, I've noticed this as well. Personally I fast for 17 hours every day and I've noticed I feel the benefits without negative consequences. Once in a while I'll go for a 3 day fast but aside from the personal challenge accomplishment I don't notice a major gain. My experience is all very non scientific. For the more rigorous science, I usually look to Peter Attia[1] [1]: https://peterattiamd.com/ https://peterattiamd.com/