My cat is approximately 7 yrs. old.
As of May 2001, she weighed 16 lbs.
I went to my local vet and she was placed on the Waltham's Calorie Control Diet. As of Dec. 2001 she has not lost any weight. She does not go out during the winter months. As of the beginning of Jan. 2001, my father has passed away, my dog was put down (due to age & illness) and a few of my family members have moved elsewhere. Could the problem be a depression problem, hindering the weight loss and lack of enthusiasm ?
It is hard to get a cat to loose weight. I do not think anything you mentioned is hindering your cats weight loss. Try feeding your cat a third less food. Good luck, vetcare