Feeding My Hyperthyroid Cat
The best diet for your hyperthyroid cat satisfies his/her nutritional requirements as an aging carnivore recovering from a muscle-wasting disease, and avoids chemicals that may contribute to thyroid disease. We encourage you to read cat food labels and consider these guidelines.
It is best to feed:
Canned or raw diets, that contain little to no fruits, vegetables, or grains. Any canned cat food is better than most dry options, which contain too much plant-based protein and carbohydrates. Meat by-products are fine for carnivores; they are simply protein sources such as organ meats and entrails that people do not find appetizing. Gravy foods tend to be high in carbohydrates, so patés are a better choice.
Motivated clients may check out the website, which gives nutrient breakdown of various prescription and over-the-counter diets in the link “Protein/Fat/Carbs Chart”. It turns out that many of the OTC canned diets have an acceptable composition of these, and are reasonably low in phosphate, i.e.:
- >40% meat protein (>12g/100 kcal)
- <10 % carbohydrates
- 50 % fat
- <250 mg/100kcal phosphate
Note: these percentages are based on dry matter, metabolizable energy, unlike those on the can label.
It may be best to avoid:
- SOY-containing foods
- BPA in canned food linings
- Plastic food and water bowls (replace with glass, ceramic or metal)
- Storing food in plastic containers
- Ultra-high or ultra low iodine diets
- y/d® diet, Hills®
Note: All hyperthyroid cats need to eat as much as they possibly can*. Offer food ad lib, and if you have a cat, heavy or thin, that refuses new diets, stick with what they will eat best. Sometimes gradually transitioning them from less-than-optimal diets to more nutritionally suitable ones works.
*If your cat is overweight, we do not recommend unrestricted calories, even before treatment here. However, we do still recommend to switch your cat to a fully wet/canned diet. Consult with your primary veterinarian about specific diet and amounts to feed.
Great place. They were so good to my kitty who was really scared. He seems to be completely cured. read more
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They are very personable, professional, and knowledgeable about their very specialized practice. If you have a cat with thyroid issues, I highly recommend this clinic. read moreBecky
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Dr. Vaughan; Kathy; Miranda; and anyone who was involved in treating and caring for Tigger. Just wanted you to see the life Tigger is leading because of your excellent care on this upcoming anniversary... read morePepper