Help With Cat Weight Loss Needed.?

HI there! I just got a good answer to that quesiton I had asked too! mine is a new cat, and i was concerned since he will not be out really, and wondered what to feed him. I was told to give him 'diet food' as well, there are some cat foods that are less fat in them? ask the pet shop? and don't feed too many times a day, and playing with little games letting them jump when you are home, or putting his food somewhere for him to run and pick it, may be daily this excersise will help him... also don't give him too much milk and things, just little food and water. apparently i read in a book as well that cats usually eat the size of 'mouse' food. Imagine them when they are in the wild fetching food! good luck!