How much of fat( butter or heavy cream)break your fast… 1 tablespoon or 2 tablespoon ?????
A tablespoon of pure fat (\~15 grams according to google) is 140ish kcal. Considering that fasting is not consuming any calories for a certain amount of time, 140 kcal is quite a lot and would be breaking your fast.
Still beats consuming a similar amount of protein or carbs though, as fat shouldn’t produce an insuline response while the other two might or will.