Our 11 month old kitty has weighed a good 12-14lbs since he was 9 months old. We started feeding him with an automatic feeder about 2 months ago and he is down to 11lbs. The Vet said we need to feed him even less than we are now which is 3/4 cup a day. They told us to feed him only 1/2 cup a day. I feel terrible only feeding him that much. Is that normal??