Dog Health Guides
Bladder stones and urinary crystals are painful, recurring, and expensive to treat. The good news is that for most dogs, they are also largely preventable through diet. This guide explains the mechanics of canine urinary health, why kibble makes the problem worse, and how raw feeding addresses the root causes rather than managing symptoms.
"Our Shih Tzu had her third round of bladder stones in four years on various premium kibbles. Switched to Rogue Raw after the last surgery. That was eighteen months ago. Clean urine tests since."
"Vet recommended the prescription urinary kibble. Checked the ingredients and it had the same problems as regular kibble with added chemical acidifiers. Went with raw instead and have not looked back."
"My two female dogs were both getting recurring UTIs and the vet kept prescribing antibiotics. Added raw food with extra water and their urine has been clear for eight months. Game changer."
High-moisture, meat-first raw proteins that naturally support healthy urine pH and hydration.
Low Purine
Raw Proteins
Salmon Belly Strips500g, low-purine omega-rich fish protein, ideal for struvite and urate-prone dogs
Lean Protein
Raw Proteins
Primal Venison500g, low-fat urinary-friendly novel protein that naturally acidifies urine
Raw Proteins
Primal Water Buffalo500g, lean red meat with high omega-3, supports urinary and kidney health
How do urinary problems develop in dogs? The basic mechanics
Bladder stones and urinary crystals form when minerals in urine reach concentrations high enough to precipitate out of solution. Think of it like salt dissolving in water: in dilute solution, the salt stays dissolved. As water evaporates and the solution becomes concentrated, the salt crystallises. The same principle applies to minerals in dog urine.
Three conditions need to be present for crystals to form and grow: concentrated urine from insufficient moisture intake, a urine pH that favours the specific crystal type, and sometimes a bacterial infection that alters the chemistry of the bladder environment.
Struvite crystals, the most common type in dogs, are made of magnesium ammonium phosphate and form most readily in alkaline urine at pH 7 or above. Roughly 95% of struvite cases in dogs involve an underlying urinary tract infection (UTI) with bacteria that produce an enzyme called urease. Urease converts urea to ammonia, making the urine more alkaline and providing the chemical scaffolding on which struvite crystals form. This is why antibiotics are the primary treatment for struvite, with dietary management as crucial secondary prevention.
Calcium oxalate stones, the second most common type, form differently. They tend to occur in acidic to neutral urine and are associated with excess calcium and oxalic acid. Unlike struvite, they cannot be dissolved by dietary management alone and typically require surgical removal. Knowing which stone type your dog has is therefore essential before starting any dietary protocol. Your vet should determine this before any diet changes are made. Dogs with kidney disease will have their own specific dietary needs, which are covered in our guide on the best food for dogs with kidney disease.
Why does kibble make urinary problems worse?
Kibble has two fundamental structural problems when it comes to urinary health, and they are not problems that premium formulation or added supplements can fully fix.
The first is moisture. Dry dog food contains approximately 9 to 11% moisture. Fresh raw meat contains 70 to 80%. A dog eating kibble as their primary diet has a chronically lower total fluid intake than their urinary system requires for healthy function. Urine becomes concentrated. Mineral ratios that would be dilute enough to remain in solution become concentrated enough to crystallise. This is not a flaw unique to cheap kibble; it affects every dry food regardless of quality because the dehydration is inherent to the format.
The second problem is pH. High-carbohydrate diets, and all kibble contains significant carbohydrates because starch is needed to bind the extrusion process, tend to produce more alkaline urine. Carbohydrate metabolism produces alkaline metabolic by-products. Meat protein metabolism produces acidic by-products. This is why carnivore urine is naturally acidic: a diet of predominantly meat acidifies urine through normal metabolic processes. Dogs whose diets shift toward carbohydrate dominance gradually drift toward more alkaline urine, creating the conditions that favour struvite formation.
Prescription urinary diets from veterinary clinics attempt to solve these problems by adding chemical acidifiers and sometimes increasing sodium to drive thirst and water consumption. The sodium increase is a crude mechanism that does increase water intake but places additional load on the kidneys and cardiovascular system over time. Dogs with concurrent pancreatitis have even more complex dietary needs, as covered in our guide on the best food for dogs with pancreatitis. A raw diet achieves natural urine acidification through protein metabolism, without any of these chemical additions.
What urine pH do raw-fed dogs have?
This is one of the most clearly documented differences between raw-fed and kibble-fed dogs, and it matters enormously for urinary health.
Raw-fed dogs consistently test at a urine pH of approximately 6 to 6.5, which is mildly acidic. This pH range is ideal for canine urinary health because it is inhospitable to struvite crystal formation, which requires pH 7 or above, while not being acidic enough to favour calcium oxalate formation, which tends to occur at pH below 6.
Kibble-fed dogs commonly test at pH 7 to 8, which is alkaline. This is a direct consequence of the macronutrient composition of their diet. More carbohydrate means more alkaline metabolic by-products means higher urine pH. Raw feeding achieves the healthy pH range through natural means: the metabolic processing of meat protein produces the correct acid load to maintain urine at 6 to 6.5 without chemical acidifiers.
Urinary health comparison: raw vs kibble
| Factor | Fresh Raw | Kibble |
|---|---|---|
| Moisture content | 70 to 80% | 9 to 11% |
| Typical urine pH | 6.0 to 6.5 (ideal) | 7.0 to 8.0 (alkaline) |
| Urine concentration | Dilute | Concentrated |
| Struvite crystal risk | Low (acidic pH inhibits) | High (alkaline pH enables) |
| Carbohydrate content | Less than 2% | 40 to 60% |
| pH acidification method | Natural meat metabolism | Added chemical acidifiers |
Which raw proteins are best for dogs with urinary problems?
Not all raw proteins are equally suitable for dogs with urinary issues. The key variables are purine content (relevant for urate-prone breeds), fat content, and how strongly the protein acidifies urine.
For dogs prone to struvite crystals, which is the majority of canine urinary cases, lean meat proteins that strongly acidify urine are the best choice. Venison, salmon, water buffalo, rabbit, and duck all meet this criterion. They produce the acidic urinary environment in which struvite cannot form or maintain itself.
For dogs prone to urate stones, which predominantly affects Dalmatians, English Bulldogs, and a few other breeds with purine metabolism abnormalities, the approach is different. Urate stones form in acidic urine and are associated with high-purine foods. The goal for these dogs is a low-purine protein source. Salmon, rabbit, and duck are excellent choices. Liver, sardines, anchovies, and other organ meats high in purines should be avoided in dogs with confirmed urate stone history.
This distinction is critically important and is where many general raw feeding guides fail: the dietary recommendations for struvite and urate are essentially opposite in some respects. A veterinary diagnosis of stone type is the essential first step before any dietary management. Dogs whose urinary issues overlap with skin problems may benefit from reading our guide on the best food for dogs with skin allergies, as novel protein selection principles apply in both contexts.
Low Purine
Raw Proteins
Rabbit Whole1kg, complete low-purine whole prey, suitable for struvite and urate-prone dogs
Raw Bones
Duck Necks 1kg1kg, moderate-purine cool protein, suitable for most urinary-prone dogs
Supplement
Primal Omega Protein500g, omega-rich superfood mix to support kidney and urinary health
How much water does a raw-fed dog drink compared to a kibble-fed dog?
This comparison surprises most people who are new to raw feeding. A dog eating fresh raw food drinks significantly less water from the bowl than a dog eating dry kibble, and this is a sign of a healthier hydration state, not dehydration.
On a raw diet, the dog is consuming 70 to 80% moisture with every meal. Their total body fluid intake from food alone is already close to meeting their daily requirements. Additional water from the bowl tops this up as needed. Their kidneys are processing adequate fluid volume and producing appropriately dilute urine.
A kibble-fed dog must make up its moisture deficit from the bowl. Even when they drink more from the bowl than a raw-fed dog, the total daily fluid intake is often still lower because the drinking response is not perfectly calibrated to compensate for the dehydrating effect of dry food.
For dogs with active urinary problems, you can also add water directly to raw food at serving time, creating a high-moisture soup consistency that maximises fluid intake. Add warm water to the serving bowl, mix it through the raw food, and serve immediately. The palatability remains excellent and the moisture intake increases substantially. This is one of the simplest and most effective interventions available.
What the prescription urinary diet industry doesn't tell you
Prescription urinary diets from veterinary clinics are often the first recommendation after a bladder stone diagnosis, and they serve a legitimate purpose as short-term management tools during treatment. But their long-term use as a primary diet deserves scrutiny.
Most prescription urinary diets achieve their urine-acidifying effect through chemical acidifiers added to a kibble base. The base is still a dry food with 10% moisture and significant carbohydrate content. The chemical acidification works to lower urine pH, but it does not address the moisture deficit that is driving crystal concentration. Dogs on prescription urinary kibble still produce more concentrated urine than raw-fed dogs because the food is still inherently dry.
Additionally, many prescription urinary diets have severely restricted protein content based on older veterinary thinking that associated high protein with increased kidney nitrogen load. The current evidence on protein and kidney health in dogs is considerably more nuanced. Moderate-to-high quality protein from whole meat sources is not harmful to healthy kidneys, and in fact low-protein diets can accelerate muscle wasting in dogs dealing with urinary problems alongside other health conditions.
A note on the 5% of struvite cases without an underlying UTI
Most raw feeding guides present struvite stones as purely diet-related, which is not entirely accurate. Approximately 95% of struvite cases in dogs involve an underlying bacterial UTI as the primary driver. Antibiotic treatment of that UTI is the primary therapeutic intervention. Diet addresses the secondary environmental conditions that allow crystals to persist and reform.
The 5% of cases not linked to UTI, called sterile struvite or metabolic struvite, are more directly diet-responsive and are where the raw feeding dietary protocol has the clearest mechanism of action. For UTI-linked struvite, the combination of antibiotic treatment plus transition to a high-moisture raw diet is the most evidence-aligned approach currently available.
Always confirm the stone type and rule out UTI with your vet before starting any dietary protocol. Do not delay antibiotic treatment for a UTI in the belief that dietary change alone will resolve the crystals. Use dietary management as a powerful adjunct to appropriate veterinary treatment, not as a replacement for it. The same principle of food-as-medicine working alongside veterinary care applies to cats, who are even more susceptible to moisture deficiency. Our guide on why cats need raw food explains the urinary connection in felines.
Why choose Rogue Raw
Six reasons Rogue Raw supports urinary health better than kibble ever can
70 to 80% moisture
Every Rogue Raw product delivers high moisture that dilutes urine, reduces crystal concentration, and supports kidney health.
Natural urine acidification
Meat protein metabolism naturally produces a urine pH of 6 to 6.5, the optimal range for struvite prevention, without chemical additives.
Low-purine options available
Salmon, rabbit, and venison are suitable for both struvite and urate-prone dogs when selected appropriately for stone type.
Zero carbohydrates
No grain, starch, or legume content means no alkalising metabolic by-products pushing urine toward the crystal-forming pH range.
Australian sourced
Clean, verified protein sources with no hidden additives that could affect urinary mineral balance.
30,000+ customers
A decade of experience helping Australian dogs with recurring urinary issues through dietary transition to raw.
Related reading
Best food for dogs with kidney disease - urinary and kidney health are closely linked, this covers the overlap
Best food for dogs with skin allergies - novel protein selection principles that overlap with urinary management
Why cats need raw food - feline urinary health and the moisture connection explained
Browse meal packs - complete weekly feeding solutions for dogs at every life stage
Frequently asked questions about urinary dog food
Is raw food good for dogs with urinary problems?
Yes. Raw food addresses the two primary dietary factors behind most urinary problems: low moisture intake and alkaline urine from high-carbohydrate diets. Raw meat contains 70 to 80% moisture and the protein naturally acidifies urine to the healthy pH of 6 to 6.5.
What is the best dog food for struvite crystals?
The best dog food for struvite crystals is a high-moisture, meat-based diet that acidifies urine and dilutes mineral concentration. Raw feeding is ideal because it provides natural moisture and uses meat protein to lower urine pH without chemical acidifiers.
What is the urine pH of raw-fed dogs?
Raw-fed dogs typically maintain a urine pH of 6 to 6.5, which is slightly acidic and optimal for urinary health. Kibble-fed dogs frequently test at pH 7 to 8, creating conditions conducive to struvite crystal formation.
Can raw food dissolve bladder stones in dogs?
Raw food can help dissolve struvite stones by acidifying urine and increasing hydration. This only works for struvite specifically. Calcium oxalate stones cannot be dissolved by diet and require veterinary intervention. Diagnosis of stone type is essential before dietary management.
Is kibble bad for dogs with urinary problems?
Kibble has very low moisture (9 to 11%) that concentrates urine, and high carbohydrate content (40 to 60%) that alkalises it. Both conditions increase crystal risk. Even premium prescription urinary kibble still has these structural limitations.
What proteins are best for dogs with urinary issues?
For struvite-prone dogs, lean proteins including venison, salmon, water buffalo, and rabbit are excellent. For dogs prone to urate stones (Dalmatians, English Bulldogs), choose low-purine proteins like salmon and rabbit, avoiding liver and other high-purine organ meats.
How does moisture in raw food help dogs with urinary problems?
More moisture in the diet means more urine volume, which dilutes minerals and reduces the concentration at which crystals form. A raw-fed dog produces significantly more dilute urine than a kibble-fed dog, making crystal formation much less likely.
Do Dalmatians need a special urinary diet?
Yes. Dalmatians have a genetic mutation causing different uric acid processing, making them prone to urate bladder stones. Urate stones form in acidic urine, opposite to struvite. Dalmatians on raw need low-purine proteins like rabbit, salmon, and duck rather than high-purine options like liver.
Can I add extra water to my dog's raw food for urinary health?
Yes, and this is actively recommended for dogs with urinary problems. Add warm water to raw food at serving time to create a soup consistency. This increases total moisture intake and directly helps dilute urine. Low-sodium bone broth can also be added for palatability.
If your dog has been dealing with recurring bladder stones, UTIs, or urinary crystals, the single most effective dietary change you can make is increasing moisture and protein quality through raw feeding. Browse Rogue Raw's meal packs to find the right urinary-friendly protein for your dog's specific stone type, and always work alongside your vet to confirm diagnosis and treatment before relying on diet as your primary intervention.
Support your dog's urinary health with raw feeding
Browse Meal PacksRogue Raw Nutrition Team
NSW-based raw pet food specialists with over a decade of experience formulating biologically appropriate diets for Australian dogs and cats. Over 30,000 customers fed across Australia.