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Best Cat Foods for Hyperthyroidism
Changing your cat’s diet up after your furry friend has been diagnosed with Hyperthyroidism can leave your head spinning, especially if you aren’t sure about what foods your cat should and shouldn’t be eating.
When looking to choose the best cat food for your cat with Hyperthyroidism, you should choose a food that’s low in carbohydrates, loaded with easily digestible protein, and low in iodine.
Please keep in mind that food is not a cure for Hyperthyroidism, but the right type of diet can help to ease the symptoms and side-effects that come with the disease while being treated.
The list of cat foods that we recommend in this article are meant to inform you about the best ways to go about changing your cat’s diet to maintain your cat’s health while suffering from Hyperthyroidism. The advice listed in this article is not intended to substitute the professional advice, diagnosis, or treatment from a veterinary doctor.
What is Hyperthyroidism?
Be careful! Did your vet say ‘Hyperthyroidism’ or ‘Hypothyroidism’? These terms are two different medical differences, so make sure that you’re absolutely clear about what your cat was diagnosed with before creating a diet to help treat your kitty.
If your veterinarian did diagnose your furry friend with Hyperthyroidism, your cat has been diagnosed with an endocrine disorder that is commonly found in elderly cats. Hyperthyroidism is caused by the body producing too many thyroid hormones caused by a tumor on the thyroid gland. The good news is that in the majority of cases, the tumor found on the thyroid gland isn’t cancerous.
The higher levels of hormones in your cat’s body cause an increase in their metabolic rate, which puts extra stress on the nervous system, heart, liver, and all of their other organs. If left untreated for a long period of time, Hyperthyroidism can be fatal to your cat.
What are the symptoms of Hyperthyroidism in cats?
Hyperthyroidism effects every single aspect of the body, which is part of what makes it difficult to diagnose. A list of some of the most common symptoms include:
– Increased appetite
– Heavy breathing
– Weight loss
– Excessive shedding
– Increased thirst
– Using the litter box more frequently
– Pounding heart rate
– Unkempt appearance (patches of fur missing)
– Changes in behavior
If you notice any of these symptoms in your cat, it’s extremely important that you take them to the vet as soon as you possibly can. Make sure that you get a diagnosis before you start making any real changes in your cat’s life!
What should I feed my cat with Hyperthyroidism?
You should be feeding your cat with Hyperthyroidism a diet with highly-digestible protein. Cats that have been diagnosed with Hyperthyroidism have a hard time maintaining muscle mass, which means that you should be choosing foods that have 50% of the calories from protein.
The best type of foods you should choose for your kitty are foods that are filled with high-quality, easily digestible sources of protein. You should also avoid feeding your cat foods that have high-protein fillers such as corn gluten meal, potato protein, pea protein, and wheat gluten.
What should I avoid feeding my cat with Hyperthyroidism?
You should avoid feeding your cat a diet that’s high in carbohydrates, so try feeding your cat a diet that has less than 10% carbohydrates from dry food. This is important as Hyperthyroidism raises your cat’s blood glucose levels, which leads to limited glucose tolerance and insulin resistance.
In other words, Hyperthyroidism can lead your kitty to being in a pre-diabetic state. Controlling your cat’s carbohydrate intake can limit your kitty’s chance for developing diabetes. In addition, you should also avoid feeding your cat soy products, as diet that is based on soy products can significantly impact your cat’s hormone production.
My vet recommended a low-iodine diet, what is that?
Your vet may have recommended your cat to follow a low-iodine diet, as in cats with Hyperthyroidism, your cat’s thyroid is producing too much thyroxine (the thyroid hormone). In order to slow the production of thyroxine, your cat’s iodine intake must be limited.
So, for your cat to follow a low-iodine diet as recommended by your vet, your kitty cannot eat any supplements or teats that have iodine. Don’t worry about your cat not eating enough iodine, as the only reason the body needs iodine is the produce thyroid hormones. Therefore, a diet that has a small amount or no iodine won’t cause your cat to develop any other health problems!
Why should I feed my cat with Hyperthyroidism wet food and not dry food?
The biggest reason why a veterinarian recommends feeding your cat wet food and not dry food while being treated for Hyperthyroidism is because dry foods are extremely high in carbs. Also, dry foods aren’t typically made with high protein contents, making them a poor dietary choice for cats with Hyperthyroidism.
Wet foods are not only lower in carbohydrates, but also offer your cats extra hydration because of the moisture used in the creation of the food. If you’re having a hard time getting your cat to eat while being treated for Hyperthyroidism, wet foods also tend to be a lot more appetizing to cats, which is why your vet may suggest switching your cat over to wet food.
What are the best cat foods for Hyperthyroidism?
Hill’s Prescription Diet Thyroid Care y/d Feline Canned Cat Food
The Hill’s Prescription Diet Thyroid Care y/d Feline Canned Cat Food was built with a limited amount of iodine, which is the most important aspect of creating a diet that’s healthy for a cat with Hyperthyroidism. This wet cat food is also high in omega-3 fatty acids and taurine and is commonly recommended cat food by pet health specialists.
As a side note, there is a dry food version of this food if your cat won’t eat canned food. The dry food version is great for cats with Hyperthyroidism, but doesn’t offer as fast of results as the canned food version does.
Pros to the Hill’s Prescription Diet food:
– Limits excessive thyroid hormone production
– Cats seem to enjoy the taste of the good
– A healthier alternative to the y/d dry food
Cons to the Hill’s Prescription Diet food:
– Has a high carbohydrate content
– Has a low protein content, which mean that it doesn’t help to maintain muscle mass
– Only an effective treatment if your cat refuses to eat anything else
Hound and Gatos Rabbit Canned Cat Food
The Hound and Gatos Rabbit Canned Cat Food is comprised with meat, vitamins, minerals, thickeners, and amino acids! Being filled with 98% meat, this canned cat food is a great choice to make if you’re looking to give your cat a canned food that helps to support the maintenance of muscle mass.
Pros of the Hound and Gatos Rabbit Canned Cat Food:
– Cans are BPA
– Limited ingredient recipe
– High protein content
– Made from biologically appropriate animal protein (rabbit)
Cons of the Hound and Gatos Rabbit Canned Cat Food:
– Your cat may not like the taste of rabbit
Instinct by Nature’s Variety Original Grain-Free Real Lamb Cat Food
95% of the Instinct by Nature’s Variety Original Grain-Free Real Lamb Cat Food is comprised of turkey liver, turkey, and lamb, making them biologically appropriate sources of protein for your cat to consume. However, the other 5% of this food is comprised from carrots, peas, flaxseed, and montmorillonite clay, none of which your cat with your Hyperthyroidism should be consuming excessive amounts of.
In addition, Instinct by Nature’s Variety states that their large cans have a BPA lining, but their 5.5 ounce cans are BPA-free.
Pros for Instinct by Nature’s Variety Original Grain-Free Real Lamb Cat Food:
– High in moisture content
– Low in carbohydrates
– High in biologically appropriate protein content
– Free from artificial ingredients and chemical preservatives
Cons for Instinct by Nature’s Variety Original Grain-Free Real Lamb Cat Food:
– Not all cans are BPA free
– Contains some vegetable content
Nutro Grain Free Soft Loaf Senior Cat Food
This blend of cat food is mainly comprised from chicken, which helps to maintain the amount of lean muscle mass your cat has. Made specifically for senior cats, this soft pâté texture makes it easy for cats with tooth problems to chew.
As stated by the brand, the Nutro Grain Free Soft Loaf Senior Cat Food only has a 0.5% carbohydrate content, making it perfect for insulin-resistant felines.
Pros to Instinct by Nature’s Variety Original Grain-Free Real Lamb Cat Food:
– BPA free cat food cans
– Soft pâté texture makes it easier for elderly cats to eat
– Made without fillers
– High-protein content, perfect for maintaining lean muscle mass
– Minimal carbohydrate content
Cons to Instinct by Nature’s Variety Original Grain-Free Real Lamb Cat Food:
– If your cat is a picky eater, your cat may not enjoy the taste of this cat food
Wild Calling Cabin Fever Chicken Grain-Free Adult Canned Cat Food
This canned cat food has a 96% meat content, with chicken and chicken liver being the main two protein sources used in this canned cat food. This is a high-calorie canned cat food at 206 calories a can, making it a great food for a cat that needs to gain weight. The Wild Calling Cabin Fever Chicken Grain-Free Adult Canned Cat Food is a great choice to make if your cat is starting to lose their lean muscle mass or is starting to recover from treatment, as the high-calorie content and protein sources support weight gain and lean muscle mass growth.
Pros to Wild Calling Cabin Fever Chicken Grain-Free Adult Canned Cat Food:
– A high-calorie cat food that’s perfect to help weight gain in your feline
– Free from fish products
– BPA free cans
– Made up of 96% biologically appropriate protein
Cons to Wild Calling Cabin Fever Chicken Grain-Free Adult Canned Cat Food:
– This canned cat food contains guar gum, which is a high-fiber ingredient, that may worry consumes that are trying to avoid feeding their cat too much fiber.
Crave Grain-Free High Protein Wet Cat Food
The Crave Grain-Free High Protein Wet Cat Food contains turkey broth, chicken, turkey, chicken liver, and pork plasma. With a high-moisture content, this wet cat food is comprised of 82% moisture, 9% protein, and 4.5% fat per a serving.
Pros to Crave Grain-Free High Protein Wet Cat Food:
– Uses real meats, making it great for supporting the maintenance of lean muscle mass
– Has a low Glycemic Index (GI) for cats that have diabetes
– 50% of the calories in this cat food are derived from the protein content that this recipe offers
Cons to Crave Grain-Free High Protein Wet Cat Food:
– Doesn’t have a recipe that’s high in Omega-3 and Omega-6 content, so you may need to add a fatty acid supplement in with your cat’s diet
Keep in mind that these cat foods aren’t meant to be used as a treatment for your cat’s Hyperthyroidism. You should feed your cat these foods to help manage your cat’s Hyperthyroidism along with proper medical treatment. We wish your kitty a long and happy life!
Alizabeth Swain is a dedicated product tester, content writer who loves cats and their purrfect pet parents too. She has made it her mission to help pet parents around the world find the best products out there (without spending a small fortune).