Regarding the Food List: the % for the P, F, and C. Are the flavors with the lower numbers better then the higher numbers?-example, the savory salmon classic carbohydrate % is 61 which is lower than some of the other flavors. So would that be a better choice? I am unable to check my cat's bs. I have tried many times as well as my son-in-law. He is very uncooperative and we just can't get enough blood. I was able to weigh him tonite. He only lost 1/2 lb. since he was last weighed on Jan. 25. Prior to that he was 14 1/2 at the vet on Jan. 2nd. So although he did lose some-it isn't too much is it?