What's sugar Alcohol in Protein bars?

I've been comparing protein bars (there's huge differences in the amount of sugar/carbs) across brands...but lately I' ve been seing the term "net carbs" and usually the product has sugar alcohols... Are we being mislead? Another label said that "net carbs" refers to the number of carbs that effects blood sugar levels. Any good nutritional view points on the net carbs and sugar alcohol stuff? hw

DIABETIC DAUGHTER SAYS THAT ALL CARBS ARE SUGAR & OF COURSE ALL SUGARS ARE CARBS. IF YOU ARE SUPPOSED TO KEEP YOUR CARBS LOW ( AS AFTER WEIGHT LOSS SURGERY) YOU SHOULD WATCH ALL CARBS & SUGARS.

This website tells you all about Sugar Alcohols, hope it helps. http://www.ynhh.org/online/nutrition/advisor/sugar_alcohol.html