As I am transitioning my 3.6 kg cat Florence from HK to raw food and homemade cooked food, I started with raw chicken from my grocery store to see. My cat Florence loves it. She can eat 2 drumsticks and chew on the extremities of the bones and eat the cartilage but even after two, in the evening she comes for more. I gave her as much as she would eat per day for 10 days (raw salmon sardines from a can, raw chicken's hearts, cooked veggies and cooked chicken with parsley, 3 drumsticks per day. It seemed she gained some weight and my husband is afraid she would become overweight. How do you manage the quantities? Is there a rule of thumb? I used to go as per the recommendation on the box of HK and before that kibbles and the cat never asked for more in the evening (guess she did not like the food as much as she now LOVES raw meet). Should I go by calories? Is there a recommended site to calculate raw meat calories?