Bladder Support Diet For Cats
Freeze-Dried • Authorization Required
This diet requires veterinary authorization. Submit authorization or provide your veterinarian’s contact information.
A vet-formulated, whole-food bladder support cat food designed to provide targeted nutrition to support urinary tract wellbeing, promote balanced mineral intake, and help address factors that contribute to urinary crystals.
Medicus Veterinary Diets-Bladder Support Diet For Cats 16oz
The Medicus Bladder Support Diet is formulated to provide targeted urinary nutrition for cats with bladder and lower urinary tract concerns. Designed with controlled mineral levels and clinically tested through RSS analysis to support urinary balance.
Whole-food ingredients and thoughtful formulation help support urinary tract health and hydration. It is complete and balanced for long-term feeding under veterinary guidance.
- High-quality digestible meat proteins
- Moderate carbohydrate level
- Low calcium, phosphorus, and ash
- Moderate pH
- Healthy fats – Omega 6: Omega-3 Ratio ~0.57 : 1
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Antioxidant-rich nutrients including cranberries and blueberries
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Clinically tested through RSS analysis
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Available in nugget and paté formats to support palatability and feeding flexibility
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Cats with lower urinary tract concerns such as FLUTD or crystalluria
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Cats at risk for struvite crystal formation
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Cats whose veterinarian has recommended a bladder-support diet
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The Medicus Feline Bladder Support Diet is meticulously crafted to address these key nutritional needs:
Creates a Urinary Environment Less Friendly to Crystals
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Controlled levels of calcium, phosphorus, and magnesium help support balanced mineral intake
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Clinically tested through RSS analysis to dissolve existing struvite stones and help reduce recurrence
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Formulated to minimize factors associated with calcium oxalate formation
Supports a Healthy Urinary pH
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Designed to maintain a moderate urinary pH when fed as directed
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Includes whole-food ingredients like cranberries and apple cider vinegar that naturally complement mineral balance
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A balanced pH helps create conditions less favorable for crystal formation
Encourages Hydration & Normal Urination
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Rehydrated feeding naturally increases moisture intake with every meal
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Higher moisture supports normal urine dilution and everyday urinary tract health
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Nuggets and paté formats make adding water easy and palatable
Supports Bladder Comfort & Everyday Wellness
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Glucosamine supports the integrity of the bladder lining
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Antioxidants from cranberry and blueberry help support a balanced inflammatory response
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Omega-3 fatty acids from ground krill contribute to overall urinary and tissue wellness
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The Medicus Feline Bladder Support Diet has undergone Relative Supersaturation (RSS) testing to evaluate how the finished recipe influences urinary mineral balance.
RSS is a widely used method for assessing the potential for crystal formation in urine. These results help demonstrate that the diet aligns with established nutritional approaches used in bladder support diets — while being built from whole-food ingredients.
Formulated to support urinary mineral balance, as demonstrated through Relative Supersaturation (RSS) testing
Bladder Issues in Cats
The domesticated cat originated from the desert cat and, as such, has the genetic ability to concentrate urine in the face of dehydration. When concentrating urine, the cat also concentrates minerals that make up crystals in the urine that can eventually congregate into bladder stones. Concentrated urine is also more caustic and can irritate the bladder and urethra.
Urinary issues may have more than one potential cause, making diagnosing and treating them complex.
Some potential causes of urinary issues in cats include:
- Poor diet with excessive intake of carbohydrates and not enough fluids
- Dry Diet
- Not enough fluid consumption
- Stones, crystals, or debris building up in the urethra or bladder (urolithiasis)
How the Diet Was Evaluated
RSS Testing can be used to discern the efficacy of a diet in managing urolithiasis in dogs and cats. Results can tell you whether a diet is able to manage both types of uroliths, struvite, and calcium oxalate.
Struvite (Cats)
To dissolve struvite uroliths, the ideal RSS diet for dissolution has an RSS for struvite at or <1 (i.e., undersaturated for struvite).
To aid in the prevention of struvite stones, the target is an RSS at or < 2.5 (i.e., Metastable for struvite).
Calcium Oxalate (Cats)
It is not possible to dissolve calcium oxalate stones.
The ideal RSS diet to help decrease the risk of calcium oxalate urolith formation will have an RSS for calcium oxalate <12 (i.e., metastable) and ideally < 10 (i.e., undersaturation)
Study Design
The study ran for twenty-three days and started upon initiation of the test diet. Beginning on Day 22 of the study, a 24-hour urine sample was collected from each cat for RSS analysis. On Day 23 of the study, urine volume was measured, and urine pH and specific gravity analyses were performed on the 24-hour urine sample from each cat. The urine samples were then processed and sent out for RSS analysis.
Urine pH, Specific Gravity, and RSS results: The 24-hour urine pH values ranged from 6.42 to 7.37 (avg. 6.92), urine volume ranged from 40 to 103 milliliters (avg. 64 milliliters), and specific gravity values ranged from 1.028 to 1.065 (avg. 1.052).
Study Results
RSS results showed urinary mineral conditions consistent with reduced struvite crystal formation potential and controlled calcium oxalate supersaturation levels, aligning with established nutritional targets for bladder support diets.
The RSS Struvite for Medicus Veterinary Diet Feline Bladder is an average of .26 documenting undersaturation for struvite and supporting dissolution of struvite uroliths and prevention of struvite stone formation.
The RSS Calcium Oxalate monohydrate (COM) and Calcium Oxalate dihydrate (COD) for Medicus Veterinary Diet Feline Bladder is an average of 2.64 / 1.15 respectively documenting undersaturation and supporting prevention of Calcium Oxalate urolith formation.
Clinical evidence shows that Medicus’ Feline Bladder Support Diet carefully balances whole food nutrition and restrictive mineral nutrient concentrations to support the cat with chronic urinary issues.
Free-range chicken, Egg, Rice, Flaxseed, Chicken Liver, Chicken Gizzards, Ground Krill, Cranberries, Blueberries, Potassium Chloride, Sea Salt, Ground Egg Shell, Apple Cider Vinegar, Glucosamine, Mixed Tocopherols, Zinc Proteinate, Vitamins & Additional Nutrients
Chicken Liver
A nutrient-dense organ meat that supplies essential vitamins and micronutrients in small amounts, supporting complete nutrition without increasing overall food volume.
Chicken Gizzards
Adds additional whole-food protein and texture while contributing bioavailable nutrients cats instinctively recognize and digest easily.
Ground Krill
Provides omega-3 fatty acids including EPA and DHA to support a balanced inflammatory response and overall urinary tract wellness.
Cranberries
Traditionally included in urinary-support diets, cranberries supply antioxidants and plant compounds that help support normal urinary tract health.
Blueberries
A whole-food source of antioxidants that supports normal cellular health and complements overall urinary wellness.
Potassium Chloride
An essential electrolyte that supports normal fluid balance and healthy urination patterns, helping maintain consistent hydration.
Sea Salt
Provides sodium and chloride to help maintain hydration and electrolyte balance as part of a moisture-supportive feeding routine.
Ground Egg Shell
A whole-food calcium source used to thoughtfully balance the diet’s overall mineral levels, supporting a controlled urinary environment.
Apple Cider Vinegar
Included in small amounts to complement the recipe’s moderate urinary pH profile while enhancing flavor and palatability.
Glucosamine
Supports the integrity of the bladder lining and overall urinary tract comfort as part of everyday bladder care.
Mixed Tocopherols
A natural source of vitamin E used to maintain freshness while providing antioxidant support.
Zinc Proteinate
Chelated zinc included to support normal immune function and nutrient utilization.
B Vitamins
B vitamins, minerals, and essential nutrients included to provide complete and balanced daily nutrition for long-term feeding.

