A recent comment

Cows eat grass, doesn't mean you can!

got me thinking. Corn, wheat, rice, etc are all grass that we eat regularly. I am not sure the human race could survive on the planet without eating grass.

But in all fairness, for the most part humans only eat the grains of the grass.

Can I eat the other parts of the grass also?

If yes, what do I need to know and/or do to prepare the grass for eating?