Dog is eating grass- What is the OT experience with this?

In my novice experience animals do it for digestive reasons.

It means his stomach is upset. Usually when they do this, they end up vomiting somewhere, at least my experience.

He's a dog. Maybe he was hungry. Just tell him to stop. Some think it means he wants to throw up, but that's not true.

It's a salad for dogs, it's very natural. Your dog feels the need to cleanse.

Fiber

I've had dogs that did it, never caused any problems

I've heard it helps their digestion

IIRC Henry Ford ate grass sandwiches

I don't know what he fed his dogs

Les miles syndrome

pretty much every dog I have ever had did that...didn't seem to cause any problems..

If he's ripping it up in great chunks non-stop, upset stomach, and he will puke it all up later. I had to watch my dog carefully when he would go into this mode, as he would bite at plant material indiscriminately. Indoors, left to his own, he'd strip leaves off houseplants and bite chunks out of rubber tree leaves, which are poisonous. Outside, if you have sago palms, watch him around those. All parts are poisonous, especially the seeds, and they do kill dogs.

After several episodes of this, I started leashing him and sitting with him or crating him. I'd squirt some pepto in his mouth or give him a Tums. He'd get over it in an hour or two.