I don't quite understand what the concern is about sugar in formula. If you would like to discuss the different types of sugars and the sources used in various commercial formulas, this would make sense.
The human body breaks down food and converts it into sugar. Sugars and proteins are the main nutrients found in all milk. Babies need sugar.
Not surprisingly lactose is the preferred sugar when one chooses formula as opposed to corn syrup or sucrose. Lactose though is only found in milk based formulas. Unfortunately the other formulas contain mostly corn syrup but I did find that the Earths Best Organic milk based contained both, sugars derived from milk and from corn (they call it glucose syrup but upon investigation it is corn syrup). Natures One brand uses brown rice syrup. Well, that is some of the info I gathered upon embarking on this subject........totally new to me as I breastfeed and never really investigated formula.
One thing that absolutely baffles me is the difference of sugar amounts per serving depending upon the brand (4-13 grams).