I'd say WHAT ARE OATS?; however, oats as a beauty product and as a binder in formed meat dishes ?
WHAT IS RICE? fits better.
Okay, the clues are confusing.
I thought it was easier. it’s used as a binder in meatloaf. Now that I think of it you didn’t have it in the meat loaf recipe you sent me. It has benefits for healthy skin.
And, as far as I know, horses don’t eat rice.