Fresh Chicken as the primary ingredient. 1st Choice Weight Control formula is specifically designed for spayed or neutered cats and also for cats that have a tendency to gain weight. A calorie-reduced formula to promote an ideal silhouette. The metabolism of spayed or neutered cats requires fewer calories because of their lower energy level. Lower fat will facilitate weight loss if fed in the same portion size as the regular formulas. Less activity because of condition or age will require less total caloric intake. Weight control formulas can be a convenient tool to limit calories.