Royal Canin Medium Adult is the default vet-clinic retail recommendation for 22–55 lb dogs. The review tests whether its corn-first, precision-nutrition formula justifies its boutique-tier price.
| Item | Detail |
|---|---|
| Protein / Fat | 26% / 14% |
| First ingredients | Corn, chicken by-product meal, wheat |
| Calorie density | 3,775 kcal/kg |
| Kibble design | Medium wedge shape for 22–55 lb jaws |
| Verdict price | $58–75 per 30 lb — $1.45–1.85/day for a 40 lb dog |
The engineering case
Digestibility is reliably excellent, stool quality consistent, and the nutrient curves (adjusted minerals, B-vitamins, EPA/DHA at modest levels) reflect Royal Canin’s formulation rigor. Dogs do well on it — that is rarely the argument. The kibble shape genuinely slows gulping medium jaws.
The value argument against
Ingredient economics work against it: corn and by-product meal leading the list is a cost-optimized formulation selling at premium prices — Purina Pro Plan Chicken & Rice delivers named-chicken-first nutrition for 20–30% less with equal feeding-trial backing (our value comparison has the math). Royal Canin earns its price in veterinary and breed-specific formulas; the generic Medium Adult is the weakest value in its own lineup. Full brand context in the Royal Canin file.
FAQ
Is Royal Canin Medium Adult worth it?
Nutritionally solid, but value-weak: same money buys named-meat-first formulas. It shines in the brand’s specialty lines, not this one.
Why is corn first?
Cost-optimized digestible energy and kibble binding. It is not nutritionally harmful — it just signals where formulation dollars went.
Related reading: Royal Canin brand file · Value comparison · More reviews · Feeding tools