I was particularly fascinated by the reader story on the dog with fits [922]. One of our rescued dogs was adopted from the vet. She was doing very well on their dry food (additive free) and we decided to keep using this. OK so far. Then we adopted another dog -- this time a pure bred and we fed her the same food. But we decided this was getting very boring and in a creative (oh no!) moment, we decided to mix a bit of canned dog food just to give the dry food some taste variety. Although I was aware of failsafe food, I didn't think to read the labels -- given that the dogs would eat absolutely anything they can find (we live out bush) the last thing I thought of was food sensitivity. Kai started to fit in groups of three about every 2 weeks. Two vets encouraged us to put her on medication (would have been for life) but we instinctively felt we should wait a little longer before we did this. Our neighbour had been a vet nurse and casually remarked that they had found additives caused dog fitting. The tinned foods! We stopped them (have since added fresh dog food without additives to their diet). No more fits. We told the vet who was dubious about the cause of them. We had no doubts after one night when, after being fit free after we removed tinned food, she had three fits. I thought that our theory had been disproved until my husband realised that without thinking he had opened a tin I had neglected to throw away -- and had given her a small amount. No more fits ever since. – Jane, NT (see our Pets factsheet)