Because low carb is the new trend and they know people will pay more if LC is slapped on the side. I compaired spaghetti sauces. The Ragu lite had the same number of calories as the "carb counting" one, but was over $2 cheaper a jar. They will charge what they know people will pay. Russle Stovers Sugar free candies have the same exact ingredients as the low carb ones, but are cheaper.