(Calculated): ME (metabolized energy) 36 kcal per ounce. Free range. All natural. Single ingredient. Premium quality. Slow baked. Welcome to The Bow Wow Ranch where our aim is to provide high quality all-natural products sourced from free-range livestock. Guaranteed to satisfy your dogs chewing instincts. No chemicals, no additives, & no preservatives. Just a clean, easily digestible chew. Our single-ingredient Piggy Strips are slow baked & packed with protein. These strips are a good source of amino acids which help stimulate a healthy brain, body, & coat all while promoting dental health by naturally cleaning their teeth through chewing as well. Treated by irradiation. www.ktrgroupinc.com. Questions or comments? info(at)ktrgroupinc.com. Product of Argentina. Packed in USA.