Each review is updated every 18 months in an attempt to stay current and not stagnate. Some dog food brands change ingredients even more often than that and some foods don’t change for years. There was an update in 12/2012 and then again in 4/2014. There were some recipe changes and some GA changes resulting in rating changes. A representative food is picked that is usually (not all the time) in the same star category as the brand itself and near the brand’s average.
The following was from 2012:
Diamond Naturals Large Breed 60+ Adult
Diamond Naturals Adult Chicken and Rice
Diamond Naturals Extreme Athlete (5 stars)
Diamond Naturals Adult Beef Meal and Rice
Diamond Naturals Adult Lamb Meal and Rice
Diamond Naturals Small Breed Puppy (5 stars)
Diamond Naturals Lite Lamb Meal and Rice (3 stars)
Diamond Naturals Small Breed Adult Lamb and Rice
Diamond Naturals Large Breed Puppy Lamb and Rice
Diamond Naturals Small Breed Adult Chicken and Rice
Diamond Naturals Senior 8+ Chicken, Egg and Oatmeal
Diamond Naturals Large Breed Adult Lamb Meal and Rice
The remaining recipes were 4 stars. So with the new changes, a 4-star recipe was chosen as the example.
