間歇性斷食

Abby Trandel

You should restrain from any food and drinks, except water.

Carmen C

1- follow the 8 hours eating windows 

Jana Kleven

I think the rules can be pretty flexible.   Whatever amount of fasting time works for you.  I would keep drinks during fasting no sugar or very low sugar.  

priyanka sharma

Intermittent fasting is basically to reduce weight or improve your gut

Erin Neise

Stick to a schedule. Whatever schedule works for your life and body fine, but stick to it. One of the goals of IF is to regulate your hunger hormone and insulin resistance.