For puppies and the increased nutritional needs of growing dogs. High meat content: With 70% meat and offal, Rinti Kennerfleisch is rich in natural meat pieces – and these pieces are what make genuine Rinti Kennerfleisch truly special. With Omega 3: These polyunsaturated fatty acids support the immune system and protect cells. Salmon oil is rich in Omega 3. With beet fiber: Rich in fiber, which regulates digestion.