Fasting
Most days I do intermittent fasting: no food between 7PM and 11AM. Sometimes I fast for one or two days (snake juice fasting). The following links will explain how to fast and what the benefits can be.
From: https://articles.mercola.com/sites/articles/archive/2018/12/30/complete-guide-fasting.aspx :
From https://tantricacademy.com/5-days-of-snake-juice-fasting-transformation/ :
Snake juice fasting (does not involve snake juice)