When one of us two-legged patients goes to the doctor with, say, a sore elbow, we give our clinicians some critical, if basic, information. We point to the joint. We say, “It’s this one, doc.”
But horses, with the possible exception of Mister Ed, are less forthcoming. That leaves veterinarians to figure out the problem using their own two eyes and whatever training and intuition they can muster.

Did you know that the name of a pet food is far more important than just a brand identifier or cute marketing technique? The way a product is named, including the order of ingredient words is strictly regulated. For example, “Chicken and Rice Dog Food” is very different from “Rice and Chicken Dog Food”.
Here is the equivalent to your secret decoder ring for pet food labels: