Treat your pup with Natural Rapport The Only Beef Heart Jerky Dog Treats, which are packed with B vitamins, collagen, elastin, iron, and essential fatty acids. These treats have no chemicals, preservatives, fillers, hormones, antibiotics, dyes, or artificial flavors–just tender chicken jerky. Beef is dehydrated at its peak nutritional moment to make it the perfect, healthy, all natural nutrient-dense treat for your pup.