Hill's Prescription Diet Thyroid Care y/d Chicken Flavor Review

Compare Prices To Find The Lowest Price
42.99 + Shipping ($4.95)
$27.94 First Auto-Ship Order
Free 1-3 Day Shipping Orders $49+
35% Off First Auto-Ship
41.99 + Shipping (Free)
Free Shipping On Orders $35+
42.99 + Shipping ($5.95)
Free Shipping On Orders $49+
79.99 + Shipping (Free)
$51.99 First Auto-Ship Order
Free 1-3 Day Shipping Orders $49+
35% Off First Auto-Ship
76.99 + Shipping (Free)
Free Shipping On Orders $35+
79.99 + Shipping (Free)
Free Shipping On Orders $49+

PawDiet has been helping pet owners since 2015. To fund our efforts, articles may include affiliate links; if you buy something through a link, we may earn a commission.


Review of Hill's Prescription Diet Thyroid Care y/d Chicken Flavor

According to our data, this Hill's Prescription Diet recipe provides complete & balanced nutrition for the maintenance of adult cats. In other words, this formula is AAFCO approved.

Unlike other AAFCO approved cat foods which rely in laboratory testing to substantiate nutritional adequacy, this recipe has undergone feeding trials. In the pet food industry, feeding trials are often considered to be the superior testing method.

Animal feeding tests using AAFCO procedures substantiate that Hill's Prescription Diet Thyroid Care y/d Chicken Flavor provides complete and balanced nutrition for the maintenance of adult cats.

Review of Ingredients

In our review of Hill's Prescription Diet Thyroid Care y/d Chicken Flavor, we'll examine all 39 ingredients and highlight the nutritional contribution of each ingredient.

While the first few ingredients typically dominate the recipe's composition, ingredients in small quantities can still have a meaningful impact on the overall nutritional profile of the recipe.

  1. Corn gluten meal is a by-product of corn processing and is used as a source of protein. However, it's not as beneficial as meat-based proteins.

  2. Whole Grain Corn is a wholesome, nutrient-dense ingredient that provides essential vitamins, minerals, and dietary fiber for your cat. It is a good source of complex carbohydrates that can help provide sustained energy throughout the day.

  3. Chicken Fat is a high-quality source of essential fatty acids, such as omega-6, which support healthy skin and coat, as well as overall health and immune system function.

  4. Powdered Cellulose is a form of dietary fiber that can help maintain healthy digestion and weight management in cats by providing a feeling of fullness and promoting regular bowel movements.

  5. Egg Product is a highly digestible source of protein that provides essential amino acids for your cat's muscle development and maintenance. It also contains various vitamins and minerals, such as vitamin A, vitamin D, and biotin, which support healthy skin, coat, and immune function.

  6. Chicken liver flavor enhances the taste of the food, making it more appealing to your cat.

  7. L-Lysine is an essential amino acid that helps support your cat's immune system and is also vital for the production of certain proteins, enzymes, and antibodies.

  8. Potassium citrate is a source of potassium, an essential mineral for proper heart and muscle function in cats. It also helps maintain a healthy urinary pH.

  9. Dicalcium phosphate is an essential mineral supplement that supports your cat's bone health and overall well-being.

  10. Lactic Acid is a natural preservative and pH regulator used in cat food to maintain freshness and prevent spoilage. It is a safe and effective way to preserve the quality of your cat's food.

  11. Fish Oil is a rich source of omega-3 fatty acids that support your cat's healthy skin, coat, and overall well-being. It also promotes proper brain function and helps maintain a healthy immune system.

  12. Calcium Sulfate is added to cat food as a source of calcium, which is essential for strong bones and teeth.

  13. Choline chloride is an essential nutrient that aids in maintaining cellular function and overall health in cats.

  14. Calcium carbonate is a common ingredient in cat food, used as a source of dietary calcium to support bone health and several key metabolic functions.

  15. Taurine is an essential amino acid that plays a crucial role in your cat's heart function, vision, and reproduction. Cats cannot synthesize taurine in sufficient amounts, making it a vital addition to their diet.

  16. DL-Methionine is an essential amino acid that helps maintain healthy skin and coat, supports immune function, and promotes overall well-being in cats.

  17. L-Tryptophan is an essential amino acid that plays a crucial role in your cat's mood regulation, sleep cycle, and overall well-being. It can also help to reduce stress and anxiety in your cat.

  18. Dried Brewers Yeast is a rich source of B-vitamins, amino acids, and minerals that support your cat's overall health. It also helps maintain a healthy skin and coat, as well as promoting a strong immune system.

  19. L-Arginine is an essential amino acid that supports your cat's overall health, including heart function, immune response, and tissue repair. It is particularly important for maintaining healthy kidney function and regulating blood pressure in cats.

  20. Vitamin E Supplement is an essential nutrient that plays a vital role in supporting your cat's immune system, skin health, and overall well-being. It also acts as a powerful antioxidant, protecting your cat's cells from damage caused by free radicals.

  21. L-Ascorbyl-2-Polyphosphate is a source of Vitamin C, which is an antioxidant that helps protect your cat's cells from damage and promotes a healthy immune system.

  22. Niacin Supplement is a form of vitamin B3 that plays a crucial role in supporting your cat's skin, nervous system, and digestive health, as well as promoting energy production.

  23. Thiamine mononitrate is a source of Vitamin B1, essential for energy metabolism and nervous system function in cats.

  24. Calcium pantothenate is a form of vitamin B5, which is essential for energy production, metabolism, and supporting your cat's overall health.

  25. Vitamin A Supplement is an essential nutrient that supports your cat's vision, immune system, and overall health. It is crucial for maintaining a well-balanced diet and proper body function.

  26. Riboflavin Supplement is a source of Vitamin B2, which supports your cat's energy production, metabolism, and overall well-being.

  27. Pyridoxine hydrochloride, also known as Vitamin B6, plays a vital role in your cat's metabolism, immune system function, and nerve health, ensuring their overall well-being.

  28. A vitamin B12 supplement is an essential nutrient for your cat, supporting their nervous system, brain function, and red blood cell production.

  29. Folic Acid is a B vitamin that is essential for your cat's health. It plays a crucial role in DNA synthesis, cell division, and the production of red blood cells. A deficiency in folic acid can lead to anemia and other health problems, making it an important ingredient in cat food.

  30. Vitamin D3 Supplement is an essential nutrient that supports your cat's bone health and immune system. It helps regulate calcium and phosphorus levels, ensuring strong bones and teeth, and plays a crucial role in maintaining overall well-being.

  31. Biotin is a B vitamin that helps support your cat's skin and coat health, as well as their metabolism and nervous system.

  32. Ferrous Sulfate is an essential source of iron for your cat, which helps support the production of red blood cells and maintains healthy energy levels. It also plays a vital role in your cat's overall health and well-being.

  33. Zinc Oxide is a source of essential trace mineral zinc, which plays a vital role in maintaining a healthy immune system, skin and coat health, and supporting various metabolic processes in your cat's body.

  34. Copper sulfate is used in cat food as a source of copper, a vital mineral that supports various body functions including iron absorption and blood cell formation.

  35. Manganese sulfate is a source of manganese, an essential mineral for bone health and enzyme function.

  36. L-carnitine is an amino acid that helps your cat maintain a healthy weight by supporting the metabolism of fats and promoting lean muscle mass.

  37. Mixed Tocopherols are a type of vitamin E used as a natural preservative in cat food to maintain freshness and prolong shelf life.

  38. Natural flavor enhances the palatability of the cat food, making it more appealing to finicky eaters.

  39. Beta-Carotene is a powerful antioxidant that helps support your cat's immune system and promotes healthy skin and coat by neutralizing harmful free radicals.

Review of Guaranteed Analysis

The Crude Protein (min) of 35.40% is likely contributed by the Corn Gluten Meal, Egg Product, and the various amino acids (L-Lysine, DL-Methionine, L-Tryptophan, L-Arginine). Corn Gluten Meal is a by-product of corn processing and is a high source of protein. Egg Product is also a good source of protein. The amino acids are the building blocks of proteins, so their presence also contributes to the overall protein content.

The Crude Fat (min) of 22.20% is likely from the Chicken Fat, Fish Oil, and potentially the Egg Product. Chicken Fat is a high source of fat and is often used in pet foods for this reason. Fish Oil is also a good source of fats, particularly omega-3 fatty acids. Egg Product can also contribute to the fat content, depending on the part of the egg used.

The Crude Fiber (max) of 3.80% is likely from the Whole Grain Corn, Powdered Cellulose, and possibly the Brewers Dried Yeast. Whole Grain Corn and Powdered Cellulose are both sources of dietary fiber. Brewers Dried Yeast can also contain some fiber.

The Calories of 4005.00 per kg are derived from all the ingredients combined, but particularly from the high protein and fat content. Protein and fats are the primary sources of energy in pet foods, so the Corn Gluten Meal, Chicken Fat, and Egg Product are likely the major contributors to the caloric content.

Review of Affordability

According to our data, Hill's Prescription Diet Thyroid Care y/d Chicken Flavor costs approximately $9.52 per pound. The following table provides our estimate of the monthly cost to feed this recipe exclusively as your cat.

Adult WeightAdult
5 lbs $50.92
10 lbs $85.63
15 lbs $116.07
20 lbs $144.02
30 lbs $195.20
40 lbs $242.20
50 lbs $286.33
60 lbs $328.28
70 lbs $368.52
80 lbs $407.34
90 lbs $444.96
100 lbs $481.55

Estimates are based on average prices and caloric requirements.

Summary of Customer Reviews

Many customers found Hill's Prescription Diet Thyroid Care y/d Chicken Flavor to be an excellent solution for their cats with hyperthyroidism. They reported that their cats' overall health improved after switching to this diet, with noticeable positive changes in their energy levels, coat quality, and weight. Some customers also mentioned that their cats, who are usually picky eaters, loved the taste of this food.

However, there were a few customers who reported that their cats had an allergic reaction to the food, likely due to specific ingredients like brewer's yeast. There were also a few reports of cats not liking the taste of the food, which could be a potential issue for some pet owners.

Several customers mentioned the convenience of this diet in managing their cats' thyroid levels, as it eliminated the need for daily medication. However, some customers experienced problems with their cats vomiting after consuming the food.

A few customers raised concerns about the cost of the food, indicating that they found it to be expensive. However, many felt that the benefits of the food in managing their cats' hyperthyroidism outweighed the cost.

Some customers suggested that Hill's offer a variety of flavors for this particular diet, as their cats would appreciate more options. Others mentioned that the food helped their cats regain weight and vitality, making them more playful and affectionate.

In conclusion, while Hill's Prescription Diet Thyroid Care y/d Chicken Flavor was beneficial for many cats with hyperthyroidism, potential buyers should be aware of possible allergic reactions and taste preferences. Despite its higher price, many customers found it to be a worthwhile investment for their cats' health.