Take the Purina ONE 30-Day Challenge for a healthy difference you can see in your pet. After just 30 days of proper nutrition, you'll see improvements that include:

• A healthy energy level
• Healthy skin and a shiny coat
• Firmer stools
• Clean teeth, fresh breath and healthy gums

By taking the Purina ONE 30-Day Performance Challenge, you should see a healthy difference in your pet. The first step is to gradually transition your dog or cat to Purina ONE® brand pet food over 7 to 10 days, then track your pet's performance as you feed Purina ONE exclusively for 30 days. In just a few weeks you should see the results: healthier-looking skin, a shinier coat, and cleaner teeth, to name just a few.