I have two 8 month old cats. One is slim but the other is quite heavy. Probably around 7-9 pounds. for a 8 month old male cat what is a decent weight? it's obvious he's overweight and it's probably unhealthy. everyone sees him and goes "your cat is so huge..." cause yeah he's pretty big. my dad and i are making sure we dont give the cats too much food cause the slim one is getting a little chunky. any ideas of how to monitor this? anyone know how many calories a cat would need in a day? i'm not going to underfeed my cats by any means i just wanna make sure he isnt having too much