Is there a reason for you to use Formula? Children over the age of one can drink fresh cow's milk which has no sugar at all.
Nan does not have sugar,sucrose or even fructose from what i saw.. Am feeding my LO Nan after a year of bmilk..
I recommend switching to goats milk, oats milk or almond milk instead of formula All formula milk has sugar
fresh milk is the best! no additives and stuffs