Hills Prescription Diet YD Thyroid Care Dry Cat Food is a delicious kibble that\'s clinically proven to support thyroid health when fed as the sole source of nutrition.Key Benefits Supports kidney health with controlled phosphorus and low sodium Helps to manage your cat\'s health in 3 weeks by normalising thyroid hormone levels Visible improvement in skin and hair coat Great taste your cat will loveRecommended for: Managing cats with hyperthyroidismNot recommended for: Growing kittens & Pregnant or lactating queensThis diet should only be fed if recommended by your vet. Please consult your vet for further information and guidance on what is best for your cat.IngredientsVegetable protein extracts, cereals, oils and fats, eggs and egg derivatives, minerals, meat and animal derivatives, seeds.