FOOD FOR FUSSY ADULT DOGS OF LARGE AND GIANT BREEDS The precisely developed recipe with reduced levels of protein and fat does not contain corn, and the large granules are adapted to the needs of large breed dogs that eat food too greedily. The optimal ratio of calcium to phosphorus as well as vitamin C, manganese and copper strengthen the dog's bones, and the addition of dried New Zealand mussels (a source of chondroitin) help maintain the good condition of joint cartilage.