A core tenet of biohacking is Intermittent Fasting (IF). This means having a cycle time between eating periods. One of the more popular durations is the 16 : 8. That is sixteen hours of fasting and an eight hour feeding window. This could look something like stop eating at 7pm in the evening and resume eating again the next day at 11am. The idea being that a metabolic shift will take place that increases fat burning and results in the body being fueled to some degree by ketones.
Some interesting resources to check out on intermittent fasting are:
Quantified Bob was recently interviewed on the Ben Greenfield Podcast. Bob takes his research seriously and does a great job of sharing his results over extended periods of time. He is a capable software / hardware guy so he is not afraid of a little soldering to make things talk. His post on following the Bulletproof Diet and intermittent fasting for 1.5 years is loaded with valuable tips and medical updates.
The Secrets to Intermittent Fasting by Malik Johnson available on Amazon Kindle Unlimited provides a clear explanation of the different type of intermittent fasting approaches. Malik also shares historical explanations for fasting which provide some context.
This is about as extreme as one can go with intermittent fasting. Dr. Nun S. Amen Ra is a vegan weightlifting champion who eats one meal a day.
Please remember that this is a biohacking post meant to provide ideas for self improvement. We are biohackers that participate in these activities. Intermittent Fasting could be a bad idea.