I dont agree.....Yorkies tend to have low blood sugar. With no food or anything you risk a drop in sugar and thats not good...Do you have Nutrical?? I'd give her that and as far as what exactly to feed her...not sure maybe other can post some recipies. I feed rice, baby food (chicken or turkey) and hamburger. Maybe someone else has a better suggestion but I definately DO NOT think fasting is the way to go, not at that size and weight! Just my opinion tho....Hope that helped!