We have 5 cats; three are about 18 months, two are about one year. All are males. All are neutered. We feed Nutro dry. We keep a bowl filled at all times and just let them eat at will. Four out of the five cats look good. Poor Gizmo (one of the older boys), well, I don't want to hurt his feelings, but he is getting F A T ! Really FAT. (Sorry Gizmo) My husband's idea is to just get Nutro's weight management and feed to all of them. Any suggestions? Thanks.