GAIN Big Dog Food Senior 12KgGain BIG Dogs Senior is a sophisticated and comprehensive diet for overweight and older dogs. Main benefits: Strong Bones and Teeth A special source of calcium from milk coupled with phosphorus and vitamin D. Weight Control: L Carnitine is included, along with lower levels of fat and energy, to help you reach your ideal weight. Vitality & Natural Immunity combination of all the protective minerals, antioxidants, and critical vitamins. Good Digestion: