For Dori;   About eating grass:

I understand it is the cellulose that is indigestible.

Cows eat grass-  they have four stomachs and they chew it
twice.

Dogs eat grass  probably as a catalyst or laxative.

Black Bears eat grass in the spring when they first come out
of hibernation;  probably it has a special effect.

Some people  eat wheatgrass- whatever that is.

Back to the cellulose-  Termites eat wood-  they cannot
digest the cellulose but they have bacteria in their gut
that digests it.

SO  maybe if you eat some wood termites first;  then you can
eat grass!

Good Luck,    Lorenzo