Hill's Science Diet vs Royal Canin

Two of the most-recommended veterinary-aligned brands. Both employ on-staff vet nutritionists; both run feeding trials.

Hill's Science Diet

Average score: 61/100. 49 products. WSAVA-aligned. Country: US.

Royal Canin

Average score: 47/100. 103 products. WSAVA-aligned. Country: FR/US.

Verdict

On overall score, **Hill's Science Diet** wins by 15 points across the analyzed catalog (61 vs 47). Both brands are WSAVA-aligned. Catalog breadth: Royal Canin (103 products) is broader than the smaller line (49).