What Foods Break The Fast?
I am doing the intermediate fasting that is part of the Bulletproof Diet. But I have a hard time understanding what foods break the fast and what foods you can eat on the fast and still be in fast. For example you should be able to still have your Bulletproof Cofee with butter and oil and still be in fast. How about a teaspoon of honey in the evening? Or other suppliment? Could anything of those break the fast?
What exactly is the cause of breaking the fast and why do things like butter not break it?