Kira is 12 weeks and 20lbs. The one bag (which we're down to using at a ratio of 25%) says 2 3/4 cups a day. The bag of the newer stuff she's on says 3 1/4 to 3 3/4 cups. Right now, she probably gets closer to 2 3/4 plus training treats and some canned food in her Kong at bedtime. She doesn't look too thin as of yet, and seems to have a waist....but she will go over and try to eat Misty's food if she has the chance. Should I try giving her 3 cups a day? Misty eats about 2 to 2 1/2, depending on who feeds her, haha. But she's an adult and has maintained the same weight for quite a while now.