Yes but according to my bariatric doctor it is natural sugar, and does not affect you they way granulated sugar would. I just had gastric by-pass and milk is supposed to be a large percentage of my daily intake, it has a good amount of protein also.
Is Sugar Added In Milk Or Is It Natural?
There is sugar, called lactose, that occurs naturally in milk. It is possible that some brands may add other sugar while processing it, but I have never seen it on an ingredients list.