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

There are certain materials that contain calories, but your body is incapable of processing them. Take cellulose for example. It’s got enough calories to make cows, sheep, and deer grow pretty darn big, but you’d starve to death eating it because you just don’t have the enzymes to break it down into a usable form.