Rumple is the brother is my fond Brittle FD cat - Mistofolees! Of note... see his brother Mistofolees' case too. Both of these cats were adopted from the local SPCA. Because Rumple ( his brother ) gained so much weight at the age of 3 we had him tested for diabetes but he tested negative. However, we then started all of our cats on a diet of Science Diet weight management food. We continued with that food until diagnosis.