NutriSource Choice Beef Grillin’ Grillers are made with high-quality protein. Wholesome ingredients that dogs love in a treat make these totally satisfying! Ingredients Beef, sorghum, barley, peas, pea protein, vegetable glycerin, brewers rice, pork liver, phosphoric acid, natural smoke flavor, potassium sorbate (a preservative), citric acid (a preservative), tocopherols (a preservative).