The answer is false.
Fiber cannot be digested, as it is made up of plant matter or cellulose.
Cellulous acts like metal in our bodies; out digestive tract was not programmed to break down cellulous. As we evolved, we mostly fed off of meat. The substance acts as a 'cleaner' per say; whenever you eat excess amounts of salad, you will understand what I'm trying to say. The cellulous makes up the structure of your wastes, helping it to flow through your body more easily.
Hope this helps!
