Calories & Carbohydrates in Just Like Sugar®?

Why does Just Like Sugar® claim there are no carbohydrates and calories in Just Like Sugar®?

The carbohydrates in Just Like Sugar® are non-digestible carbohydrate (NDCH), and works in the body as dietary fiber.  When you consume Just Like Sugar®, there is little to no digested by the human body and the carbohydrates pass through with no caloric intake.

According to the UK Food Labeling Guidelines, carbohydrates must be listed whether they are soluble, non-soluble, digestible or non-digestible. Therefore, our nutrition labels list the non-digestible carbohydrates which is 96% healthy fiber even if the serving size is 1/2 teaspoon or 1 pound