Hi Acroyali-
Yes, as the owner of a female hyperthyroid cat, I can’t help but wonder if it isn’t due to feeding a lot of fish flavored can food to her during her lifetime. I’ve read many articles and studies on the risk factors of feline hyperthyroidism and most somehow link pop top canned food as a common denominator, especially fish flavored. I don’t think they know exactly what it is about the canned food that is a risk factor, however. If is is actually the food or the can itself.
It is quite a dilema for me though as I also have a male cat that has suffered a life threatening urinary blockage and requires a lot of moisture in his diet. I’m trying to find a happy medium as I do not want any of the other cats to have either issue. They are both, obviously, very hard on the cats.
I do remember reading in a previous conversation on this topic that there are foods that block the absorption of iodine as the above poster mentioned. I forgot all about that issue!
