Chowmark rates every pet food formula on a 0–100 scale using a 5-factor algorithm built entirely from public data. No brand pays to influence any score.
| Factor | Weight | Data Source |
|---|---|---|
| Label and source coverage | 30% | Retained label records and ingredient source coverage |
| Nutritional Adequacy | 25% | AAFCO nutritional profiles, manufacturer statements |
| Safety & Recall History | 20% | FDA openFDA enforcement API, CFIA recalls-rappels.canada.ca |
| Evidence Base | 15% | WSAVA Global Nutrition Guidelines, peer-reviewed research |
| Label Transparency | 10% | Guaranteed analysis completeness, named protein sources |
| Score | Label | What It Means |
|---|---|---|
| 80–100 | Excellent | Strong performance across all five factors |
| 65–79 | Good | Above-average performance with minor gaps |
| 50–64 | Fair | Average performance; some factors below standard |
| 35–49 | Poor | Below-average; significant gaps in one or more factors |
| 0–34 | Very Poor | Multiple significant deficiencies |
| # | Product | Brand | Score |
|---|---|---|---|
| 1 | Purina ONE True Instinct High Protein with Real Chicken & Duck Dog Food | Purina One | 80/100 — Excellent |
| 2 | Purina ONE True Instinct Lean Muscle Support With Real Beef Natural With Added Vitamins, Minerals and Nutrients High Protein Dog Food | Purina One | 79/100 — Good |
| 3 | Purina ONE LiveClear Allergen Reducing Dry Kitten Food | Purina One | 78/100 — Good |
| 4 | Purina ONE Plus High Protein Ideal Weight and Healthy Metabolism with Chicken Dry Cat Food Formula | Purina One | 78/100 — Good |
| 5 | Canine Beef Meal Feast | Nature's Logic | 77/100 — Good |
| 6 | 10+ Essentials Fish & Dehydrated Fish Cat Food Recipe | RAWZ | 77/100 — Good |
| 7 | Air Dried "Just For My Small Dog" Lamb Recipe | RAWZ | 77/100 — Good |
| 8 | MedalSeries Puppy Baked & Coated Turkey, Chicken & Duck Recipe for Dogs | Nulo | 76/100 — Good |
| 9 | FreeStyle Adult Trim Salmon & Lentils Recipe for Cats | Nulo | 76/100 — Good |
| 10 | MedalSeries Puppy Salmon & Lentils Recipe for Dogs | Nulo | 76/100 — Good |
Disclaimer: Chowmark scores are algorithmic data assessments. They do not constitute veterinary advice. Consult a licensed veterinarian before changing your pet's diet.