I know a mare who is allergic to grass. That’s fun.
He does address testing your grass/hay and supplementing if the hay/pellets/soybean meal aren’t cutting it or if your horse has metabolic issues.
For some horses, I agree that it may be enough. But I objected to the overall tone of the article, especially the part about laughing at owners who are ‘proud’ of horses with Cushings and vets being happy to go along with that mentality to make more money. PPID is pretty common but I disagree that the cause is diet, in most cases. I think, at least in part, that the fact that our horses live longer lives on average has played a big role in an increasing number of animals being treated for PPID. That and better testing and more information about early symptoms. Once upon a time, if a horse didn’t have a wooly coat and troubled feet, they weren’t suspected of having Cushings/PPID. Now we know better and can test and start treatment, often before the more serious symptoms such as laminitis set in.
I lost a horse with Cushings about 12 years ago. He wasn’t diagnosed until his symptoms were obvious and he foundered while we were still adjusting his compounded Pergolide dosage. He only lived another couple of years after diagnosis and ended up dying of sudden kidney failure. The vet and I both believed his late diagnosis played a role in that.
It irks me to read an article where someone makes light of something like PPID, as if most owners just want to over-medicate and willy nilly add whatever supplement or feed that’s popular while vets rub their hands and rake in the money. Makes the vets sound unethical and the owners sound stupid. The reality is that most people are doing the best that they can. Most vets don’t make lots of money and genuinely care about the animals they treat. That the author suggested otherwise really raised my hackles.