The thyroid gland, located in your cat’s neck, uses dietary iodine to make thyroid hormones that help regulate important body functions including your cat’s:

Hyperthyroidism is a common feline endocrine disorder, most often diagnosed in older cats over age 10. Left untreated, hyperthyroidism can have serious, sometimes fatal, consequences on vital organs like the heart and kidneys. The good news is, this disease is highly manageable and can be controlled with proper veterinary care.
If your cat has hyperthyroidism, her thyroid gland will be enlarged and produce excessive amounts of thyroid hormone. Left untreated, hyperthyroidism can have serious, sometimes fatal, consequences on vital organs like the heart and kidneys. The good news is, this disease i,s highly manageable and can be controlled with proper veterinary care.
Signs of hyperthyroidism can vary in severity depending on how long a cat has been ill. If your cat exhibits any of the following signs, contact your veterinarian immediately:
Cats with chronic kidney disease and diabetes mellitus exhibit some signs similar to hyperthyroidism. Your veterinarian may also need to perform tests for these diseases to ensure an accurate diagnosis. If your cat has hyperthyroidism, her thyroid gland will be enlarged and produce excessive amounts of thyroid hormone.
Four potential options for managing cats with hyperthyroidism are:
The food your cat eats plays an important role in her overall health and well-being. Balanced nutrition is an essential part of an active, healthy lifestyle. For accurate diagnosis and treatment options, always consult your veterinarian and ask them to recommend the best food for your cat’s thyroid health.
Check out this video about how Prescription Diet cat food can help.
One of our staff authors prepared this article for you
Tender Chunks in Sauce with breakthrough weight management nutrition for safe & effective weight loss and long-lasting weight support.
Hill's Science Plan Mature Adult Wet Cat Premium Mousse Chicken is a complete and balanced pet food for mature adult cats 7+ years old, with a deliciously smooth texture they'll love
Tender chunks in gravy for cats, with high-quality protein to maintain lean muscle. With vitamin E and omega-3s & -6s for healthy skin and balanced minerals to support healthy vital organs.
Hill's Science Plan Adult Cat Premium Mousse with Salmon is a complete and balanced pet food for adult cats aged 1-6 years, with a deliciously smooth texture they'll love
Learn about the warning signs, symptoms, and treatments of cat obesity and weight management in cats and the conditions that affect on your cat.
Being overweight puts a cat at risk of developing many serious health issues. Weight gain indicates an increase in body fat and usually results when your cat eats too much and exercises too little.
Discover why your cat may be itching and licking excessively, and what it could mean. Get expert advice on feline healthcare at Hill's Pet.
Learn about the causes of cat dermatitis, how to spot the symptoms and the best treatment options. Visit Hill's Pet for detailed guidance and tips.
Our low calorie formula helps you control your cat's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavourful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.
Our low calorie formula helps you control your cat's weight. It's packed with high-quality protein for building lean muscles, and made with purposeful ingredients for a flavourful, nutritious meal. Clinically proven antioxidants, Vitamin C+E, help promote a healthy immune system.