Best Cat Fish Oil Supplements of 2025

"I've been using this product for a year, and it has made a big difference in my 13-year-old cat's mobility and pain relief. I give it to both my older and younger cats, and I believe it works effectively for both of them."

"My vet recommended this for my cat's dandruff, and I was initially skeptical. But after about three weeks, there has been a noticeable improvement. His dandruff is gone, and his fur is so soft and shiny. It's also inexpensive and lasts a long time!"

"I did a lot of research before purchasing this fish oil for my 11-year-old cat. After a few weeks, his fur looked shiny and fuller, and he hasn't lost any more hair in the areas he usually over-grooms. Although the smell isn't the best, he eventually started to eat it without any issues. This product has been effective for improving his skin and coat health!"

"My kitty absolutely loves this healthy oil! His fur is softer and looks healthy."

"I was concerned my picky cat might not like this, but all three had no issues with it at all. The pump was tight at first, but after using pliers, it operated perfectly!"

"After using this oil, my cat's coat became smooth and silky. I only use a couple of drops twice a week, and he hasn't had any matting since!"

"I absolutely love Welactin and its impact on my cats' health. I started using it on my vet's recommendation. Despite the fishy flavor, my cats were initially hesitant, so I began giving it to them via syringe. Within a month, I saw amazing results—my senior cat was more active, and the younger ones appeared healthier. Their coats transformed dramatically; my Ragdoll now has a fluffy, pillow-like coat, my black cat's fur is silky and shiny, and my alley cat's coat is soft and glossy. Now, they eagerly line up for their daily dose before breakfast. Just a word of caution: the oil can stain surfaces, but I found a great cleaner that helps with that!"

"I've been using Welactin for my 15-year-old cat for nearly a year now. I initially purchased it at the vet's office, and I've found it to be effective for her health issues. I give her a dose every other day, and she handles it well since the amount is small. I learned to dispense it carefully to avoid messes, and I store it in its original box to minimize spillage. This product really works, so don’t let the minor mess discourage you from ordering it!"

"My cat has been enjoying Welactin in his food, and I've definitely noticed a positive change in his health. His coat looks more beautiful since I added it to his diet. However, I've faced the bottle leaking issue again, which is frustrating. After reaching out to Amazon, they were helpful and promised to report the problem to the company. Overall, I’m really pleased with the product!"

"I used this product for my dogs for years, but when it was unavailable, I switched to another brand, and their coats and skin suffered. Now that I've returned to this product, they love it, and I'm noticing their coats are getting softer and shedding less."

"My vet recommended Omega 3 for my miniature Dachshund's dandruff. I was thrilled to find that he enjoys them plain, so they must be quite tasty! I’m hopeful to see improvement in his dandruff soon."

"As a vet tech, I’m picky about what I give my pets. These small gel capsules are perfect for my small dogs. I hide them in peanut butter, and they get them every night for mobility, heart health, and skin health. I’m very satisfied!"

"After using this product for three weeks, my 10-year-old cat's coat has transformed. The dandruff is gone, and her coat is now shiny and soft. I was amazed at how effective it was!"

"I initially thought my cat would love these treats since he usually eats anything, but he completely refused to try them. It's disappointing because I opened the package, and now I have a lot of unused product."

"My cat absolutely loved these treats! Even though she's not picky, I did notice a slight improvement in her coat after a month, despite her being on a high-quality diet."

"After using this for about a month, my cats' dry skin around their ears and necks is gone, along with their scratching. Their fur is incredibly soft now. I highly recommend this product!"

"I started giving this to my two-year-old black cat who had fleas and dry dandruff. I've noticed his fur is regrowing nicely and looks much shinier. Bi-weekly application seems to be working well."

"I bought this for my older cat with arthritis. Switching to this Omega-3 Fish Oil made a huge difference! My cat loves the taste, and it's easy to give. He seems happier and less stressed now."

"My veterinarian recommended this product, and it has greatly improved my dog's coat. However, I've noticed that the bottle leaks, and the fishy smell is quite strong. Despite the price increases, I'm committed to using this excellent product."

"I was initially skeptical about this product since we had tried other fish oils without success. But after 4-6 weeks, my dog Rufus has completely stopped scratching! He enjoys the taste, and I just add it to his food once a day. I did have to switch to a metal dish for easier cleaning because it can be messy."

"The first time I ordered, I didn't receive a pump, which made it a bit messy to use. When I finally got a pump, it was broken, and the bottle was overfilled, causing a spill. Now that I have a working pump, it still leaks, but the product itself is effective. It cleared up my dog's dandruff in just a few weeks!"

"I bought this for my two small dogs suffering from dry skin, and not only did it clear their dry skin, but their coats are so shiny now!"

"I've been using this product for years. My dogs absolutely love it, and I can see that it’s good for their health."

"After rescuing a Pyrenees pup with a coarse coat, I decided to give this a try. In just a few weeks, her coat became soft and silky! Even my other pup, who already had a nice coat, got fluffier and thicker fur, just like he had in his puppy days!"

"I ordered this for my 8-year-old pitbull, and after a month, I noticed a significant improvement in her coat and dry skin. She's scratching less and her coat is now soft again."

"My German Shepherd thinks this salmon oil is like candy! I give it to her to help with her skin, and she itches slightly less when taking it. I highly recommend this brand; the pump is super convenient for measuring."

"I have a Newfoundland with flaky skin, and this oil really helps with her itching. She's quite picky, but she loves this oil!"

"I'm thrilled with Pet Wellbeing fish oil! I appreciate that they use wild caught cold water fish from sustainable sources. The blend of herring, sardine, mackerel, and anchovy oils is fantastic. Plus, the oil is molecularly distilled at low temperatures, preserving all the nutrients. My dogs absolutely love the taste, and I'm happy with the health benefits they're receiving."

"When I first opened the bottle, my cat was eager to try it! I love that it contains multiple types of fish. It's an easy way to boost their omega-3 intake. All three of my cats enjoy the flavor!"

"I’ve been using this fish oil for my small dog, whose skin was red and scaly. I give her a small tablespoon each morning, and I've noticed her skin is definitely less red. The scales seem to be diminishing as well, so I believe this product is genuinely helping her."