You can already get some of the benefits if you eat only once a day, or in a 4h window.
Basically a 20-23h fast 😇
Some words to search for it you want to look into it:
Intermittent fasting, omad, insulin resistance, autophagy
I used to do long fasts on just water, my best was 17 days.
But that was more of a challenge for myself 😎
Now I do one meal a day regularly and sometimes skip the meal for a 48h fast 😄
It's hard in the beginning because of habits and the body producing Hungerhormone right before your usual eating times.
It gets easier tho 👍
I'm not even feeling any hunger till maybe 4 in the afternoon 🥳