Our weight control cat food utilizes a blend of vitamins and nutrients to help weight management while providing unsurpassed nutrition and the ultimate protection of our exclusive LifeSource Bits. Our LifeSource Bits are a precise blend of nutrients and antioxidants selected to help maintain the health of your cat's immune system, help defend against the negative impact of environmental toxins and provide support for specific life stage requirements. LifeSource Bits are cold formed to help maintain the nutritional potency of their ingredients.