So, I have two house cats. One is very petite, at 6 pds., she doesn't eat a lot but she is very healthy and energetic. She is 10 years old and sometimes runs around the house like a kitten. The other, used to be between 11-12 pds., but now she is 13 pds. Since cats are nibblers, I just give them a little bit of food at a time throughout the day, because I'm home for a good part of the day. Also, I don't like giving them too much at once because they both have a tendency to throw up (don't know if they eat too fast or what) not sure if one does this more than the other, as I seldom catch them in the act. So, I've seen the heavier one (Mittens) eat her food and then go to the other dish and clean up what the other one didn't eat. I have picked up the dish, but I forget to put it back and I don't want to deprive Sassy (the lighter one) of food if she just wants to eat a little bit at a time. (When I put it back down, Mittens might eat it anyway.) Mittens is also very active, she keeps up with Sassy and they tear around the house on a daily basis. (She is 9 years old) So, just as people are different shapes and sizes, so are cats. But, I don't want Mittens to get heavier than she is right now, I know 12 pds. is normal and 13 is too much. Any ideas on how I can keep Mitten's weight down? How do you do that with two cats? Thanks!