→ See the live ingredient breakdown for Purina Cat Chow
What's actually in Purina Cat Chow?
We analyzed Purina Cat Chow Complete High Protein Dry Cat Food with Real Chicken, one of America's best-selling cat foods. The first five ingredients are chicken by-product meal, ground yellow corn, corn protein meal, whole grain wheat, and rice.
Chicken by-product meal at #1 is rendered from chicken parts excluding muscle meat. Ground yellow corn at #2 is a cheap carbohydrate filler that provides starchy calories but minimal nutritional value for obligate carnivores. Cats have no biological requirement for corn — their digestive systems are designed to process animal protein. Whole grain wheat at #4 adds another grain cats don't need. Animal fat at #7 doesn't specify a species. Shop on Amazon →
The good stuff
Purina Cat Chow is one of the most affordable and widely available cat foods in America. It's in every grocery store, every Walmart, every Target. For cat owners on an extremely tight budget, it meets AAFCO minimum nutritional standards and provides calories.
The formula includes some grain nutrients from the corn and wheat — B vitamins, fiber, and trace minerals. It's fortified with essential vitamins and minerals to meet minimum requirements. The food has a long shelf life.
The not-so-good stuff
After chicken by-product meal at #1, the next five ingredients are all plant ingredients: ground yellow corn, corn protein meal, whole grain wheat, rice and soy flour. Cats are obligate carnivores — they require animal protein for essential amino acids like taurine and arginine.
Whole grain wheat at #4 adds a second grain and a common allergen. The unnamed "animal fat" at #7 doesn't specify a species — you don't know what animal it came from.
The frustrating part: Purina clearly knows how to make better cat food. Purina Pro Plan (C/58) scores 21 points higher, and Purina ONE (C/58) scores 21 points higher. Cat Chow is their budget play — and cats pay the nutritional price.
How it compares
Purina Cat Chow's D/37 puts it 10 points below 9Lives (D/47), though both are built on the same by-product-and-corn foundation from different manufacturers. It sits 2 points above Meow Mix (D/35) and 2 points below Friskies (D/39).
The upgrade math is simple: Iams (C/58) costs modestly more and scores 21 points higher with chicken first instead of chicken by-product meal. Taste of the Wild (A/90) scores 53 points higher and puts real fish protein first. Even within Purina's own lineup, stepping up to Purina ONE (C/58) is a 21-point improvement.
The bottom line
Purina Cat Chow Complete earns a D grade (37/100) from KibbleIQ. By-product-heavy and grain-loaded — this formula feeds the corporate bottom line more effectively than it feeds your cat. It meets minimums, which is the bare legal requirement. If budget allows any flexibility, upgrading to a C or B grade cat food is the single most impactful change you can make for your cat's nutrition. Obligate carnivores need meat, not corn. Shop on Amazon →
Sources
- AAFCO (Association of American Feed Control Officials) feline adult-maintenance profile and ingredient-naming rules.
- FDA Pet Food Recall & Withdrawal Database. Purina's mainstream cat lines appear in the FDA recall history; the database is the authoritative source for brand-specific review.
- WSAVA Global Nutrition Guidelines on the difference between meeting AAFCO minimums and delivering optimal feline nutrition through named-protein-first formulation.
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.