I'm looking for a good book/textbook that goes in depth about gorilla gut biology (also, anything on herbivore gut biology in general will do) and why are able to process plants in such a way that they still have all the necessary materials to be so muscular. Also anything on their feeding habits, as in what plants they eat, would be helpful as well. I want to get a complete picture of what is going on form the mouth to the moment the nutrients enter their bloodstream.
I'm wondering if it would be possible to create some process that uses gorilla's unique gut bacteria (converting fiber to fatty acids) and mimics some processes of their digestive system that we lack (like fermenting plants in the colon) that would allow one to create new types of food that still provide the macronutrients humans need to survive and be healthy. Ideally this new food would be made out of plants we cannot currently eat (or that when consumed yield few usable macronutrients). It would open up tons of currently uncultivatable ground to be farmed for plants we previously considered low-value and we could become much more efficient at producing the food we need to survive.
This is probably coming across as some nonsense pseudoscience babble, but I'm serious. At the very least I want to learn why this isn't possible, or if someone could explain why the idea is bad that would be great.