Nature. Research. Results. No matter how far science advances us, we always look to nature to inspire us. Crafted to be a dog food closer to what nature intended, Purina ONE True Instinct recipes start with a SmartBlend® of natural ingredients, backed by research. The result is truly healthy nutrition filled with more of what you want, and less of what you don’t. That means 30% protein, with real Salmon & Tuna, and no poultry by-product meal, artificial flavours or preservatives. This is natural nutrition your dog instinctively craves.