A diet rich in protein promotes lean muscle mass and a healthy body weight, while keeping your dog sated and happy. ACANA Light ' Fit is brimming with meat, organs, cartilage, and bone from free-run chicken and wild-caught flounder, plus the delicious nutrition of cage-free eggs. Whole animal ingredients mean your dog is getting everything they need in their most nourishing form, delivering nutrients naturally, without long lists of synthetic additives.