Purina Pro Plan Development Grain Free Chicken Liver and Oce

The Verdict

The short version: If you’re raising a puppy and want a food that actually delivers on its brain-development promises without corn, wheat, or soy fillers, this Purina Pro Plan formula earns its 4.7-star rating. But it’s not the right choice for every dog owner — and here’s why.

What’s actually in the bag

You’re getting a 4-pound (or larger, depending on size purchased) bag of grain-free kibble where chicken liver is the first ingredient — not a processed meal, not “poultry byproduct,” but actual organ meat. That’s followed by ocean whitefish and salmon. This triple-protein lineup matters because puppies need roughly 22-28% protein for muscle development, and this formula sits at 30% crude protein with 17% fat — squarely in the developmental sweet spot.

The kibble itself is small (about the size of a pencil eraser) and surprisingly dense. It doesn’t crumble in the bag, and it holds up well when soaked in warm water for puppies transitioning from wet food — a detail long-time Purina Pro Plan users will recognize.

Real-world performance

The most impressive feature here is the DHA level — sourced from fish oil, not synthetic additives. DHA is the omega-3 fatty acid responsible for retinal and brain development in puppies. Multiple veterinary studies show that puppies fed DHA-enriched diets perform better in trainability tests and have improved visual acuity. This isn’t marketing fluff; it’s measurable.

The calcium-to-phosphorus ratio sits at 1.1:1, which is the sweet spot for large-breed puppies prone to hip dysplasia and osteochondritis. If you’re raising a German Shepherd, Labrador, or Golden Retriever, this ratio is specifically designed to slow rapid bone growth — preventing developmental orthopedic disease.

What buyers consistently report

The 235 ratings at 4.7 stars tell a consistent story. One verified purchaser wrote: “My 10-week-old GSD pup has been on this for three weeks. Her coat is noticeably shinier, and she has way more energy than my previous dog had on a grocery-store brand.” Another noted: “The kibble size is perfect for small breeds — no choking risk, and she actually chews instead of inhaling.”

Digestibility gets repeated praise. Multiple reviewers mention firmer stools within days of switching, which aligns with the absence of fillers like corn gluten and soybean hulls that cause loose stool in sensitive puppies.

Where it falls short

The grain-free premium is the biggest caveat. Unless your puppy has a diagnosed grain allergy (which is rare — about 1% of dogs), you’re paying extra for a formulation that offers no additional benefit over Purina Pro Plan’s grain-inclusive puppy formulas. The FDA’s ongoing investigation into grain-free diets and canine dilated cardiomyopathy (DCM) is worth noting, though this formula uses chicken liver and fish — not legumes like peas or lentils that have been the primary DCM concern.

The other gripe: no measuring scoop. For a food where portion precision matters during growth phases, fumbling with a tablespoon is frustrating. Use a kitchen scale for accuracy — 1 cup weighs approximately 110 grams.

Who should buy this

Buy it if:

• You have a puppy under 12 months old, especially a large breed
• Your pup has shown signs of grain sensitivity (itchy ears, chronic scratching)
• You want a food with research-backed DHA, not just marketing claims

Skip it if:

• Your puppy is a small breed with normal digestion — the cheaper grain-inclusive Pro Plan formula works just as well
• You’re on a tight budget; this runs roughly 15-20% higher per pound than grain-inclusive equivalents
• You prefer a food with a single protein source for allergy elimination trials — this has three

FAQ

Q: Can I feed this to an adult dog? A: Technically yes, but it’s not ideal. The protein and fat levels are tuned for growth. Switching an adult dog to this long-term can lead to weight gain. Look for Pro Plan’s Adult formulas instead.

Q: How fast should I transition my puppy? A: Over 10-14 days. Start with 25% new food mixed with 75% old, then gradually shift the ratio. Going faster invites digestive upset, even with a high-quality food like this.

Q: Is the grain-free claim actually meaningful? A: For most puppies, no. It matters only if your vet has confirmed a grain allergy. Otherwise, you’re paying for the label. The DHA and calcium ratios are the real differentiators here — and those exist in Purina’s grain-inclusive puppy lines too.

The Verdict: 4.6/5

This is a genuinely well-formulated puppy food with real nutritional science behind it. The DHA levels, calcium-to-phosphorus ratio, and triple-protein base justify the price for owners who want the best developmental foundation for their pup. The grain-free angle is mostly marketing, and the missing scoop is minor, but the core product delivers.

Buy it if you’re raising a large-breed puppy and want a food that addresses both brain and bone development. Skip it if your puppy has no sensitivity issues — you’ll get 90% of the benefit from Pro Plan’s standard puppy formula at a lower cost.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.