→ See the live ingredient breakdown for Nutro
What's actually in Nutro?
We analyzed Nutro Wholesome Essentials Indoor Adult Chicken & Brown Rice Recipe, their core indoor cat formula sold at PetSmart and other retailers. The first ingredients are chicken, chicken meal, brewers rice, pea protein, and whole grain brown rice.
Chicken at #1 and chicken meal at #2 is a strong double-protein opening. Chicken provides whole-meat protein, and chicken meal is concentrated with the water removed — meaning it contributes more actual protein per pound. Natural preservation with mixed tocopherols (vitamin E) is the gold standard. Shop on Amazon →
The good stuff
Having both whole chicken and chicken meal means the protein isn't just a label trick from one moisture-heavy ingredient.
Natural preservation throughout — no BHA, no BHT, no artificial colors, no artificial flavors. For a Mars brand (the same company that makes Iams, Royal Canin, and Pedigree), this is a notable step up in ingredient philosophy. Nutro proves Mars can make quality cat food when they choose to.
The not-so-good stuff
Brewers rice as the third ingredient means a significant portion of the formula is grain-based carbohydrate. Cats have no biological requirement for grains, and while rice is among the better grain choices (easily digestible, low allergenicity), the ideal cat food would minimize all plant content. The protein content could be higher for optimal feline nutrition.
Protein diversity is limited — chicken is the only named animal protein source. Cats benefit from varied protein sources, and formulas like Wellness (B/78) that include multiple animal proteins provide broader amino acid coverage.
Some Nutro formulas may include less ideal plant proteins that boost the guaranteed analysis numbers without providing the amino acid profile cats need. The price point is higher than the nutritional value strictly justifies when compared to competitors like Taste of the Wild (A/90), which delivers similar quality at a lower cost.
Read the full breakdown in our head-to-head comparison: Halo vs Nutro.
The bottom line
We haven’t scored Nutro Wholesome Essentials’ current recipe yet. The double chicken protein base and natural preservation are its strengths; rice content and limited protein diversity are the trade-offs. Shop on Amazon →
Corrected 2026-10-19: we removed claims we could not support; we corrected factual errors, and grades and score comparisons that did not match our current scores.