The scores
Royal Canin Poodle: D (38/100) — Well below average. A corn-and-gluten-heavy formula where the only animal-sourced ingredient in the top six is chicken by-product meal.
Nulo: A (90/100) — Excellent. Deboned turkey leads the formula with multiple named animal protein sources, grain-free construction, and added probiotics.
A 52-point gap is enormous. To put it in perspective, Royal Canin Poodle is closer to an F-grade food than it is to even an average C-grade formula. Nulo sits near the top of our entire scoring database. These two products aren’t in the same conversation when it comes to ingredient quality, and the breed-specific label on the Royal Canin bag doesn’t change that math.
How the ingredients compare
The top ingredients tell the whole story here:
Royal Canin Poodle: Corn, Chicken By-Product Meal, Brewers Rice, Wheat Gluten, Chicken Fat, Corn Gluten Meal
Nulo: Deboned Turkey, Turkey Meal, Salmon Meal, Yellow Peas, Chicken Fat, Sweet Potatoes
Royal Canin Poodle starts with corn — a cheap carbohydrate filler that provides minimal nutritional value for dogs. The second ingredient is chicken by-product meal, which includes heads, feet, intestines, and undifferentiated organs. Then comes brewers rice (a milling by-product), wheat gluten (a plant protein used to inflate the protein percentage cheaply), and corn gluten meal (another plant-based protein booster). This formula is built around corn and gluten with some rendered poultry parts mixed in.
Nulo takes the opposite approach. Deboned turkey — a fresh, named whole meat — is the first ingredient. Turkey meal and salmon meal provide concentrated animal protein from two different species. Yellow peas add fiber and carbohydrates without relying on grains. Sweet potatoes provide a nutrient-dense, easily digestible carbohydrate source. The only shared ingredient between the two formulas is chicken fat, which is a perfectly fine fat source.
The difference in protein sourcing is critical. Royal Canin Poodle relies on by-product meal plus two plant-based protein concentrates (wheat gluten and corn gluten meal) to hit its protein guarantee. Nulo gets its protein almost entirely from named animal sources. For dogs, animal protein is more bioavailable — meaning more of it is actually absorbed and used by the body.
Where Nulo pulls ahead
Named whole meats and protein diversity: Nulo puts deboned turkey first — a fresh, whole animal protein that you can actually identify. Turkey meal and salmon meal follow, giving the formula three named animal protein sources from two different species. This kind of protein diversity provides a broader amino acid profile than any single-source formula can offer. Royal Canin Poodle has one animal protein source in its top six, and it’s by-product meal.
Grain-free with clean carbohydrates: Nulo uses yellow peas and sweet potatoes instead of corn, brewers rice, wheat gluten, and corn gluten meal. While the grain-free debate continues, what’s not debatable is that sweet potatoes provide more vitamins, minerals, and fiber per calorie than corn or brewers rice. There are zero gluten sources in Nulo — relevant for Poodles, which can be prone to food sensitivities.
Probiotics and no by-products: Nulo includes patented BC30 probiotics for digestive health. It also contains zero by-product meals. Every animal protein is clearly named and identifiable. This matters because by-product meal is a catch-all category — the exact composition varies from batch to batch, making it impossible to know precisely what your dog is eating. Shop on Amazon →
Where Royal Canin Poodle holds its own
Royal Canin’s breed-specific kibble shape is designed for the Poodle’s smaller, narrower jaw. This is a genuine engineering consideration — Poodles can be picky eaters, and kibble shape does affect how easily they can pick up and chew their food. If your Poodle refuses other kibble shapes, this is worth noting.
The formula includes L-cystine, an amino acid supplement that supports coat health. For Poodles — a breed defined by its coat — this is a targeted addition you won’t find in most general formulas, including Nulo. L-cystine is a building block of keratin, the protein that makes up hair, and Poodle coats are demanding in their nutritional requirements.
Price is also a factor. Royal Canin Poodle typically costs less per pound than Nulo, though the gap is smaller than you might expect given the 52-point quality difference. If budget is a hard constraint, there are B-grade foods like Taste of the Wild or Blue Buffalo that offer dramatically better ingredients than Royal Canin Poodle at a more moderate price point. Shop on Amazon →
The bottom line
A 52-point gap leaves no room for ambiguity. Nulo is the better food by every ingredient-quality metric we measure. Its formula is built around fresh animal proteins from multiple species, uses clean carbohydrate sources, includes probiotics, and avoids every low-quality ingredient that defines Royal Canin Poodle’s top six — corn, by-product meal, brewers rice, wheat gluten, and corn gluten meal.
Royal Canin Poodle’s breed-specific kibble shape and L-cystine for coat health are real advantages, but they’re supplements bolted onto a formula that scores 38 out of 100. A Poodle eating Nulo gets superior protein, cleaner carbohydrates, and probiotics — the coat and digestive benefits of a high-quality diet will outweigh a targeted amino acid additive on a poor nutritional foundation.
If Nulo’s price is a stretch, the answer isn’t to fall back to Royal Canin Poodle. Multiple B-grade foods in the $50-60 range outperform it by 30-40 points. Read our full reviews of Royal Canin Poodle and Nulo for the complete ingredient analysis.