I read your post,and added broth and CO to my 2 day fast...and then I lost nothing! I was really bummed. I continued to google feeling cold while fasting. I found several sites where they said that when you are fasting, your blood circulates more around your vital organs, in order to provide them with nourishment. That leaves less blood flowing to your extremities, which can make you feel cold. Next week I will try fasting again and just add a sweater! Wish I knew for sure...don't want to lower my metabolism, but it also seemed ridiculous that I would fast for 2 days and not lose at all. Oh--one other thing could have done that--the broth I drank had msg, and in my readings I found that msg is a super high insulin stimulator. So, that was a bad choice for me.