Available In: 4 lb., 10 lb., 23.5lb. Health Extension’s Grain Free Chicken & Turkey recipe offers all the health benefits of Health Extension’s Original recipe but in a grain-free formula. And you won’t find any added hormones ‘ just high quality, organic chicken as our FIRST ingredient ‘ because we believe sensible protein levels are the first step to a healthy life. With such a pure formula, Grain Free is especially beneficial for dogs with allergies or sensitive digestive tracts. Unlike other brands, our grain-free variety contains a unique blend of nutrients and supplements, like apple cider vinegar and colostrum to boost immune systems for improved health.