maddanwill wrote:.does 2 T of 1/2 and 1/2 in my coffee break my fast?
Technically, yes. But there's no fasting police. What are you trying to accomplish? If a little fat in your coffee gets you over the hump and helps you keep your fast, well then do it! If a little deviation helps you achieve a greater good, then do it. It might help you overcome the obstacle next time.
One take-away from the book, "The Complete Guide to Fasting", by Jimmy Moore and Jason Fung, there are no hard and fast rules about fasting, especially if you're just doing it for good measure and not for a specific health concern (like addressing cancer) or if following specific religious strictures.