Royal Canin diet feline Urinary SO

Royal Canin Urinary SO feline diet is a complete and balanced diet for adult cats that have been formulated to aid in the management of feline lower urinary tract disease (LUTD). 

Ten years ago, the majority of uroliths removed from cats were struvite (magnesium ammonium phosphate). Since struvite formation is highly dependent on urine pH, diets designed for managing struvite uroliths encouraged the production of severely acidic urine and were highly restricted in magnesium. 

In the past ten years, there has been an increase in the incidence of calcium oxalate urolithiasis. The dietary management tools for struvite (acidification and severe magnesium restriction) have been suggested to be risk factors for calcium oxalate urolith formation. 

The management of calcium oxalate urolithiasis is far more challenging than struvite urolithiasis. In humans, calcium oxalate uroliths can form in urine across the full range of normal pH values (4.8-7.4). Urine pH manipulation cannot be used to reliably manage calcium oxalate urolithiasis, nor is the restriction of dietary calcium and oxalate effective in preventing oxalate urolith formation. 

Diets specifically designed to prevent one type of urolith may greatly increase the risk of the other type of urolith forming. Waltham Science has taken a safer approach and invested years of research in developing a single diet which effectively reduces the risks for both types of uroliths simultaneously. 

Royal Canin diet feline Urinary S/O are the first and only diets which have been clinically proven to reduce the risk of both struvite and calcium oxalate urolithiasis.

This diet has been designed to ensure production of urine undersaturated for struvite and with levels of calcium oxalate saturation at which spontaneous homogenous crystallisation will not occur.

Indications:

Struvite urolithiasis
Struvite containing urethral plugs
Calcium oxalate urolithiasis
Idiopathic cystitis
Pouch LUT support diet is the only diet clinically proven to reduce reoccurrence of idiopathic cystitis)
Pouch LUT support diet is available in two varieties, chicken and beef

How Royal Canin diet feline Urinary S/O works:

Relative SuperSaturation:
Relative SuperSaturation (RSS) methodology predicts the crystallization potential of urine. RSS is used to develop diets that control both struvite and calcium oxalate urolithiasis. 
 
Struvite Dissolution:
Effectively idssolves pure struvite uroliths.
 
Urine Dilution:
Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite, preventing the two major types of urolithiasis. 
 
Natural Preservative (Dry):
Naturally preserved with mixed tocopherols, vitamin E and rosemary extract.
 
Idiopathic Cystitis (Canned):
Clinically proven to reduce the reoccurrence of clinical signs of feline iodiopathic or interstitial cystitis.
 
Nutritional Differences:
(as compared to typical commercial pet foods)

Promotes the production of urine undersaturated (RSS < 1) for struvite
Promotes the production of urine metastable (RSS < 5) for calcium oxalate
Moderate acid load to encourage the production of a urine with pH between 6.0-6.3
Formulated to promote increased urine volume
High moisture content in canned format
Increased sodium chloride content in both canned and dry formats
Moderately restricted magnesium levels
Controlled levels of calcium and oxalate
Moderately restricted phosphorus levels
Increased levels of potassium
Enriched with antioxidants