Royal Canin Veterinary Diet Urinary SO Dry Cat Food
Royal Canin Veterinary Diet Urinary SO is a precision veterinary formula designed to reduce urinary supersaturation and support long‑term urinary health with tightly controlled mineral levels and pH management; it earns its spot for targeted formulations recommended by clinicians for cats with documented struvite issues. Compared with the other options on this list it leans more toward a clinically focused, vet‑only approach and is often positioned at a premium price point reflecting its specialized nutrient profile and frequent veterinary endorsement.
Dissolves struvite stones
Controlled mineral levels
Dissolves struvite stones
Controlled mineral levels
Review Summary
"Users commonly report that Royal Canin Urinary SO is effective at dissolving and preventing struvite crystals and is generally well accepted by picky eaters, though some mention the cost and need for a vet prescription as drawbacks."
Vet-grade crunch!
Veterinary diet formulated to support dissolution of struvite stones and reduce recurrence.
Vet-grade crunch!
Veterinary diet formulated to support dissolution of struvite stones and reduce recurrence.
Increased Safety & Security
Time-Saving Convenience
Recreational Enjoyment
Royal Canin Veterinary Diet Urinary SO is a precision veterinary formula designed to reduce urinary supersaturation and support long‑term urinary health with tightly controlled mineral levels and pH management; it earns its spot for targeted formulations recommended by clinicians for cats with documented struvite issues. Compared with the other options on this list it leans more toward a clinically focused, vet‑only approach and is often positioned at a premium price point reflecting its specialized nutrient profile and frequent veterinary endorsement.
Dissolves struvite stones
Controlled mineral levels
Vet-grade crunch!
Veterinary diet formulated to support dissolution of struvite stones and reduce recurrence.
Controlled levels of magnesium, calcium and phosphorus to minimize crystal formation.
Dissolves struvite stones
Controlled mineral levels
Vet-grade crunch!
Veterinary diet formulated to support dissolution of struvite stones and reduce recurrence.
Controlled levels of magnesium, calcium and phosphorus to minimize crystal formation.
$40-140 USD
Hill's Prescription Diet c/d Multicare Urinary Care
Hill's Prescription Diet c/d Multicare is backed by extensive clinical research and broad veterinary acceptance for managing urinary crystal and stone risk through controlled minerals, urine pH management, and added antioxidants; its strong evidence base and wide availability make it a market leader for prescription urinary support. Compared to peers, c/d often represents a cost‑effective prescription option with frequent clinic availability and manufacturer support programs, making it a practical choice for long‑term management.
Prevents stone recurrence
Antioxidant support
Prevents stone recurrence
Antioxidant support
Review Summary
"Most long-term users praise Hill's c/d Multicare for reliably reducing urinary issues and preventing recurrence, with many vets recommending it; a minority note occasional taste rejection or weight changes."
Picky-cat magnet
Prescription diet clinically formulated to reduce risk of recurrent urinary tract issues.
Picky-cat magnet
Prescription diet clinically formulated to reduce risk of recurrent urinary tract issues.
Increased Safety & Security
Time-Saving Convenience
Recreational Enjoyment
Hill's Prescription Diet c/d Multicare is backed by extensive clinical research and broad veterinary acceptance for managing urinary crystal and stone risk through controlled minerals, urine pH management, and added antioxidants; its strong evidence base and wide availability make it a market leader for prescription urinary support. Compared to peers, c/d often represents a cost‑effective prescription option with frequent clinic availability and manufacturer support programs, making it a practical choice for long‑term management.
Prevents stone recurrence
Antioxidant support
Picky-cat magnet
Prescription diet clinically formulated to reduce risk of recurrent urinary tract issues.
Promotes a urinary environment that discourages crystal and stone formation.
Prevents stone recurrence
Antioxidant support
Picky-cat magnet
Prescription diet clinically formulated to reduce risk of recurrent urinary tract issues.
Promotes a urinary environment that discourages crystal and stone formation.
$40-150 USD
Purina Pro Plan Veterinary Diets UR St/Ox Urinary
Purina Pro Plan Veterinary Diets UR St/Ox focuses on reducing both struvite and oxalate risks with a patented St/Ox antioxidant system and urinary‑targeted nutrition, combining palatability with clinical intent. Technically strong and often competitively priced against other prescription diets, Purina's offering is notable for balancing scientific formulation with value, appealing to owners seeking veterinary strength nutrition without a top‑tier price premium.
Balances urine pH
Dual stone defense
Balances urine pH
Dual stone defense
Review Summary
"Purina Pro Plan UR St/Ox is frequently reported as effective and palatable for cats with urinary concerns, with positive long-term outcomes for many owners, though a few prefer alternative veterinary formulas."
Meaty flavor boost
Veterinary formula designed to reduce both struvite and calcium oxalate crystal risk (St/Ox approach).
Meaty flavor boost
Veterinary formula designed to reduce both struvite and calcium oxalate crystal risk (St/Ox approach).
Increased Safety & Security
Time-Saving Convenience
Recreational Enjoyment
Purina Pro Plan Veterinary Diets UR St/Ox focuses on reducing both struvite and oxalate risks with a patented St/Ox antioxidant system and urinary‑targeted nutrition, combining palatability with clinical intent. Technically strong and often competitively priced against other prescription diets, Purina's offering is notable for balancing scientific formulation with value, appealing to owners seeking veterinary strength nutrition without a top‑tier price premium.
Balances urine pH
Dual stone defense
Meaty flavor boost
Veterinary formula designed to reduce both struvite and calcium oxalate crystal risk (St/Ox approach).
Controlled mineral content and urine pH management to support urinary tract health.
Balances urine pH
Dual stone defense
Meaty flavor boost
Veterinary formula designed to reduce both struvite and calcium oxalate crystal risk (St/Ox approach).
Controlled mineral content and urine pH management to support urinary tract health.
$45-140 USD
Blue Buffalo Natural Veterinary Diet W+U Weight Management + Urinary Care
Blue Buffalo Natural Veterinary Diet W+U is unique among these products by combining urinary support with calorie and weight management, making it a smart choice for overweight cats that need both conditions addressed simultaneously. Compared to single‑focus prescription formulas it offers a dual‑purpose technical advantage, though it typically trades off for higher cost and a ‘natural ingredients’ positioning that some clinics prefer for owner satisfaction.
Weight-control kibble
Urine pH management
Weight-control kibble
Urine pH management
Review Summary
"Blue Buffalo W+U gets praise for combining weight management with urinary support and being made from recognizable ingredients, but reviewers sometimes mention palatability variability and mixed clinical results."
Natural-ingredient yum
Veterinary diet that combines calorie control for weight management with urinary care nutrients.
Natural-ingredient yum
Veterinary diet that combines calorie control for weight management with urinary care nutrients.
Increased Safety & Security
Time-Saving Convenience
Recreational Enjoyment
Blue Buffalo Natural Veterinary Diet W+U is unique among these products by combining urinary support with calorie and weight management, making it a smart choice for overweight cats that need both conditions addressed simultaneously. Compared to single‑focus prescription formulas it offers a dual‑purpose technical advantage, though it typically trades off for higher cost and a ‘natural ingredients’ positioning that some clinics prefer for owner satisfaction.
Weight-control kibble
Urine pH management
Natural-ingredient yum
Veterinary diet that combines calorie control for weight management with urinary care nutrients.
Reduced calories and adjusted fiber to support weight loss while managing minerals affecting urine.
Weight-control kibble
Urine pH management
Natural-ingredient yum
Veterinary diet that combines calorie control for weight management with urinary care nutrients.
Reduced calories and adjusted fiber to support weight loss while managing minerals affecting urine.
$50-160 USD
Iams ProActive Health Urinary Tract Health Formula
Iams ProActive Health Urinary Tract Health Formula is a widely available, consumer‑level option aimed at supporting urinary tract health through moderate mineral control and hydration‑supporting kibble design, and it stands out as the most budget‑friendly, over‑the‑counter alternative on this list. Unlike the prescription veterinary diets above, Iams is intended for general maintenance and prevention rather than treatment of active urinary disease, offering financial accessibility for routine care but less clinical evidence for managing diagnosed conditions.
Supports urinary health
Moderate mineral mix
Supports urinary health
Moderate mineral mix
Review Summary
"Iams ProActive Health Urinary formula is appreciated for being affordable and improving some cats' urinary odor and comfort, but reviews are mixed on its effectiveness for serious urinary crystal issues compared with prescription diets."
Budget-friendly crunch
Non-prescription formula aimed at supporting urinary tract health with controlled mineral levels.
Budget-friendly crunch
Non-prescription formula aimed at supporting urinary tract health with controlled mineral levels.
Increased Safety & Security
Time-Saving Convenience
Iams ProActive Health Urinary Tract Health Formula is a widely available, consumer‑level option aimed at supporting urinary tract health through moderate mineral control and hydration‑supporting kibble design, and it stands out as the most budget‑friendly, over‑the‑counter alternative on this list. Unlike the prescription veterinary diets above, Iams is intended for general maintenance and prevention rather than treatment of active urinary disease, offering financial accessibility for routine care but less clinical evidence for managing diagnosed conditions.
Supports urinary health
Moderate mineral mix
Budget-friendly crunch
Non-prescription formula aimed at supporting urinary tract health with controlled mineral levels.
Lower magnesium content and balanced minerals to help maintain urinary pH.
Supports urinary health
Moderate mineral mix
Budget-friendly crunch
Non-prescription formula aimed at supporting urinary tract health with controlled mineral levels.
Lower magnesium content and balanced minerals to help maintain urinary pH.
$20-50 USD