Alright, let me tell you about my journey figuring out the best food for my cat with hyperthyroidism. It’s been a real learning curve, but I think I’ve finally got the hang of it, and I’m excited to share what I’ve found.
So, my cat started acting a bit off – eating like crazy but still losing weight, drinking tons of water, and having some tummy troubles. I took him to the vet, and yep, it was hyperthyroidism. The vet gave me some meds, but also said changing his diet could make a big difference.

First thing I did was hit the internet, reading everything I could about hyperthyroidism in cats and what to feed them. It seemed like most people agreed that the best diet is one that’s high in protein, low in carbs, and has a good amount of fat. It’s important to keep those older kitties in good shape, especially when their metabolism is all messed up from the thyroid issue.
I started looking at cat food labels like it was my job. I wanted something with at least 40% protein, and no more than 10% carbs. And I learned that wet food is generally better than dry, especially when it comes to keeping carbs low. I found that raw food is also a good choice, but you need to have enough time.
I started by switching my cat to a high-protein canned food that I found at the pet store. It took a bit for him to get used to it, but I mixed it with his old food gradually, and eventually, he was all in on the new stuff.
- I started mixing the new food with his old food.
- Gradually increased the amount of new food over a week.
- Eventually, he was fully transitioned to the new diet.
Then I started experimenting with different brands and flavors, trying to find the ones he liked the best. There were a few that he wasn’t crazy about, but we eventually found some winners.
Now, I’ve heard some folks talk about a special prescription diet, like that Hill’s y/d stuff. That’s supposed to be really good for cats with hyperthyroidism, but it’s pricey. I haven’t tried it yet because the high-protein diet seems to be working well for us, but it’s something I might consider in the future.
Results
Honestly, I’ve seen a big improvement since switching his food. He’s not losing weight anymore, and he seems to have more energy. His coat looks healthier, too. I’m so glad I took the time to figure out the right diet for him. It’s made a real difference in his health and happiness. I think we are on the right track!