Intermittent fast or 24 hour occasionally? Seems like I read fasting puts the body in a stressed state....Lots. I buy fruit wholesale by the box so I always have fructose. It's more about eating the whole fruit than just juice. For sucrose I use sucanat, Turbinado, coconut sugar, and evaporated cane juice. I use those randomly as in a scoop here and there or for making a homemade condiment. I also reduced more visceral fat by fasting. I tested my urea nitrogen to make sure I didn't burn muscle. Fasting can be done in a way where you burn mostly fat stores, especially visceral fat.