Easily digested Iams ProActive Weight and Hairball Care is formulated to meet the unique needs of indoor cats. It's made with 10% less fat than Iams Original formulas. Fewer calories in combination with fat-burning L-Carnitine， and a special blend of carbohydrates that keep pets feeling full， enables heavy cats to gradually return to a healthier weight. Whole grains， beets， and rice support a healthy digestive system， and help reduce hairballs and litter-box odors. For adult cats 1-6 years.