Hi Angela, I certainly think that diet can trigger off a whole host of problems but the word is trigger, the weakness is pre-existing. Definately in porto-systemic shunt puppies and dogs the seizure is caused by unprocessed proteins being carried to the brain hence diet results in a seizure but is not the root cause . I would definately be looking at some form of liver dysfunction if dietary aspects were triggering seizures. Some antibiotics can make humans feel very strange, I know that I can't tolerate some because of dizziness and loss of vision so it makes sense to me that perhaps some forms of preservative or meat meal made from chicken and beef containing antibiotics fed to the slaughtered animal might have an effect. Years ago I went to a seminar about natural feeding and was told the best meat to feed a dog was New Zealand lamb because the sheep are not overdosed on drugs and growth stimulants.
I think too many drugs and inappropriate fodder are fed into the meat animals and no matter whether you feed BARF or kibble there has to be some residual effect over time. Then there is the runoff in our water supplies and pesticide and herbicide in our veggies. I'm sure I would feed organic to any dog of mine that was at risk for seizures but bottom line is if an animal cannot tolerate the world we find ourselves in then they are not breeding animals. Rose