Pro Plan Veterinary Diet UR Urinary is a prescription dry food for adult cats with lower urinary tract conditions. Formulated under veterinary direction and available through licensed pet health retailers, this is a therapeutic diet — not a general urinary support food. It's designed for cats diagnosed with struvite crystals or stones, or those at ongoing risk of recurrence.

The formula works on two fronts: it promotes a urinary environment that discourages the formation of both struvite and calcium oxalate crystals, and it supports the dissolution of existing struvite stones. High-quality animal proteins provide the nutritional base, while controlled mineral composition manages urinary pH. The dry format also encourages increased urine volume, which helps dilute minerals before they can concentrate and crystallise.

Cats placed on this diet are typically managing active struvite disease or staying on long-term prevention after treatment. It requires a veterinary prescription — not a diet to choose independently. Once recommended, it's a well-established formula with clear clinical reasoning behind it.