I’m not a vet, no. But read the article above written by a VMD, and who has studied far more about nutrition than any vet gets in school, and more than most any other vet has studied
It’s not a website that I can copy any section from, but if you don’t care to read it, at least scroll to the bottom “To Summarize”
Essentially:
“iron deficiency as a cause of equine anaemia is virtually non-existent in horses”
2 main causes are iron overload and Copper deficiency
Adding iron does not fix primary anemia if it even existed. It’s not like people where we often struggle to get enough iron, especially women
I think you’re not understanding my comments on this
Yes, nutritional deficiencies can cause diseases. Too much P and too little Ca can cause “big head disease”. Too little copper can cause low iron. Too little E or Se cause muscle issues, and worse
But you cannot determine a dietary deficiency of Ca or protein in an otherwise healthy horse by looking at blood. If you see one of those out of whack, there is a disease in progress, whether it’s cancer or kidney failure
So no, you can’t do even a comprehensive blood panel to evaluate the diet. You evaluate the diet, to evaluate the diet. Selenium and Vit E are the exceptions