Energy balance : A calorie supply ideally suited to the requirements of cats having moderate activity and for maintaining their ideal weight. Maintaining an ideal weight : The amount of calories are optimal for the energy requirements of a cat weighing the optimal amount. Hairball Regulation : A combination of fibers that improves intestinal transit and the elimination of the hair swallowed every day and also limits hairball formation. Urinary tract health : Appropriate mineral content can help keep urinary tracts healthy by maintaining a pH of 6. 0-6. 5. Immunity support : A patented comple, of synergistic antioxidants (vitamins E and C, lutein, taurine) and MOS (Mannan-oligosaccharides) to strengthen the natural defenses of cats living partly outdoors.