Green Coast Pet’s Heart Health Soft Dog Chews are produced using cold extrusion, which minimizes the impact of temperature damage, giving the chews greater digestibility and nutritional value. The chews are natural and free of artificial preservatives. In addition to taurine, the chews contain beneficial doses of L-carnitine and coenzyme Q10 (CoQ10). The chews are grain, corn, soy and sugar free. They are available in Chicken and Whitefish flavors.