Yogurt has basically three types of sugars:
Lactose – a naturally occurring sugar found in milk;
Fruit (in fruit flavored yogurt) – a mix of sucrose, fructose and glucose;
Sugar – “free sugar” added.
When yogurt is made from skim milk or low fat milk, the companies often need to add sugar to compensate for the lost lactose sugar.
Not all sugars are to be treated equally and there is “bad” sugar that should be limited in our diets vs sugar that doea does not harm healthy people..
Even checking the nutritional facts for gm of sugar may not reveal the breakdown of the sugar sources.
The cholov akum yogurts vary widely in sugar content: The lowest supermarket brands have less than 5 gm sugar, while certain varieties of Dannon has 12 gm sugar, Stoneyfield has 24 gm, Yoplait has 27 gm,
To say cholov yisroel brands have significantly more sugar is simply factually inaccurate.