Farmina N&D Quinoa Urinary- Duck, Cranberry & Chamomile recipe is a complete food for cats, suggested for the reduction of struvite stone recurrence and feline lower urinary tract disease. 94% of protein from animal origin, 0% artificial preservatives, 0% grains. Duck is rich in natural antioxidants, Vitamins, minerals and omega-3 fatty acids Stabilization of the urine pH to 6.0 – 6.3 which helps in dissolving Struvite calculi which form in alkaline pH of the urine (over 7). Reduction of Magnesium (Mg) helps as Mg is the main constituent of struvite stones.