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.

MetricIAMSMerrick
Nutritional adequacy2121
Ingredient quality2831
Additives & processing2018
Transparency66

Guaranteed analysis

As printed on each label; dry-matter protein removes the moisture so wet and dry read on the same basis.

MetricIAMSMerrick
Protein25%30%
Fat14%10%
Fiber4%5%
Moisture10%11%
Protein (dry-matter)27.8%33.7%

First five ingredients

IAMS

  1. Chicken
  2. Ground Whole Grain Corn
  3. Ground Whole Grain Sorghum
  4. Chicken By-Product Meal
  5. Soybean Meal

Merrick

  1. Deboned Beef
  2. Chicken Meal
  3. Sweet Potatoes
  4. Potatoes
  5. 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.

How the engine worksCitation registry