How can a product consist of ingredients that contain calories, but the product has zero calories itself?

Question

How can a product consist of ingredients that contain calories, but the product has zero calories itself?

In: 19

Answer 1

So it’s technically possible those ingredients are processed in such a way that they make it so the human body can’t access those Calories anymore. But that is basically never what happens, I cant even think of an example of that.

What *is* happening is that nutritional labels are allowed to round down So for example, tic tacs are just pure sugar, which definitely has Calories. But each tic tac has less than 5 Calories so they can say it has zero.