How To Read a Nutrition Label

Fiber is one type of carbohydrate that does not raise blood glucose. In fact, the presence of fiber can slow down the impact of the other carbohydrates in a meal. Therefore, when counting carbs, we subtract the grams of fiber from the grams of total carbohydrate. This gives a number which is variously called effective carbs, or usable carbs, or net carbs, or impact carbs. This figure is the amount of carbohydrate in a food that affects blood sugar.