but again, they talk mostly about the seeds, which we eat plenty of already. Maize, wheat, barley, rice, etc. are all grasses but we only get any food energy (calories) from the seeds. We’re not ruminants, we cannot survive on the actual leaves/blades of grass like, say, cows can. It’s also worth noting that grass (leaves/blades) eating animals like cows spend basically every waking hour eating.