- Hill’s Prescription Diet y/d Thyroid Care Dry Cat Food is specially formulated by Hill’s nutritionists and veterinarians to manage your cat’s thyroid health
- Clinically proven to improve thyroid health in 3 weeks when fed as the sole source of nutrition
- Controlled phosphorus and low sodium supports kidney health
- High in taurine, L-carnitine to support heart health and a healthy body condition
- Clinically proven antioxidants support a healthy immune system
From the manufacturer
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What is science-led nutrition?
Nutrition inspired by science — not trends — creates differences you can see, feel and trust. Our food scientists understand the combinations of nutrients and ingredients to help support lifelong health.
How much should I feed my pet?
Most Prescription Diet foods have a feeding guide on the package to help you determine the proper amount for your pet. It’s critical to your pet’s health that their physical condition be monitored regularly and the feeding amount adjusted as needed.
The datecode on our plastic bags is located on the left gusset, near the 4 or 5-digit SKU number, toward the bottom of the bag. The datecode on our medium and large bags will be located on the top of the bag, generally the front flap.
How should I store my cat or dog’s dry food?
Bags of dry Science Diet, Healthy Advantage and Prescription Diet cat or dog food should be stored in a cool, dry environment under 100°F (38°C).
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Our Mission
To help enrich and lengthen the special relationship between people and their pets.
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Science-Led Nutrition
Carefully selected ingredients & nutrients deliver differences you can see, feel & trust.
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Pet Nutrition Center
Where 900+ dogs & cats dedicate their time to ensuring Hill’s products provide optimal nutrition.
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Therapeutic Nutrition
When your vet identifies specialized nutritional needs, Hill’s Prescription Diet foods can help.
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Our History
Guide dog, Buddy, was suffering from kidney failure and Dr. Morris knew nutrition could help.
Your Hill’s Purchase Helps Support Shelter Pets
The Hill’s Food, Shelter & Love program is proud to have helped over 13 million shelter pets and counting find new homes. Since 2002, we’ve supported shelter pets by ensuring they eat precisely balanced nutrition 365 days a year.