IAMS Proactive Health Adult Minichunks Chicken & Whole Grain Recipe vs Merrick Grain Free Healthy Weight Beef & Sweet Potato Recipe
Order follows the Universal Score — the same deterministic engine, the same rules, for every product. Brands can't pay for placement.
The scores
Bowlmark scores are independent opinions based on published label information and cited references. They are educational, not veterinary advice, and no substitute for your vet — especially for medical conditions or prescription diets.
Pillar by pillar
Weighted pillar contributions from each product's stored score — nutritional adequacy, ingredient quality, additives & processing, transparency.
| Metric | IAMS | Merrick |
|---|---|---|
| Nutritional adequacy | 21 | 21 |
| Ingredient quality | 28 | 31 |
| Additives & processing | 20 | 18 |
| Transparency | 6 | 6 |
Guaranteed analysis
As printed on each label; dry-matter protein removes the moisture so wet and dry read on the same basis.
| Metric | IAMS | Merrick |
|---|---|---|
| Protein | 25% | 30% |
| Fat | 14% | 10% |
| Fiber | 4% | 5% |
| Moisture | 10% | 11% |
| Protein (dry-matter) | 27.8% | 33.7% |
First five ingredients
IAMS
- Chicken
- Ground Whole Grain Corn
- Ground Whole Grain Sorghum
- Chicken By-Product Meal
- Soybean Meal
Merrick
- Deboned Beef
- Chicken Meal
- Sweet Potatoes
- Potatoes
- Peas
Flags on the label
IAMS
- No nutritional-adequacy statement
Merrick
- No nutritional-adequacy statement
- Synthetic vitamin K3 — questioned safety margin vs natural K sources
Cite this page
Bowlmark. "IAMS Proactive Health Adult Minichunks Chicken & Whole Grain Recipe vs Merrick Grain Free Healthy Weight Beef & Sweet Potato Recipe." https://www.bowlmark.com/compare/iams-proactive-health-adult-minichunks-chicken-and-whole-grain-recipe-vs-merrick-grain-free-healthy-weight-beef-and-sweet-potato-recipe
- Engine
- Methodology engine v1.1.0 · config 13c99e2f
- Verified
- Last verified August 20, 2026
The engine and config above are the ones stamped on this page's score — the exact pair that produced the number shown.