The 10 Best Cat Vitamins & Supplements

“solved all our problems! Our kitten was getting constant eye irritation, so our vet recommended giving him Lysine. We gave him little chewable treats for a while, but they were a nuisance, since we had to crumble them up really small for him to eat them, and they made our hands smell pretty strongly. Enter this stuff! It’s quick, easy, comes with a scoop of the right size, it’s a good price — and he loves it. We don’t even have to mix it into his wet food, we just sprinkle it on top twice a day and he gobbles it right up. 10/10 would recommend!”

“Slight phosphorus level reduction. I started adding this to my cats' wet food after one of them was diagnosed with kidney disease a few months ago. Luckily it seems the cats have accepted the supplement. When her blood was tested again after 2 months, she did have a slight reduction in her phosphorus levels. (This was in combination with a partial renal diet.) I'm definitely going to keep using it for now. My biggest recommendation regarding this stuff is based on the size you order relative to the size of animal you have. First time I purchased, I got the medium size (180g) which comes with a 1g scoop. Once I realized that I'd be using this long term and needed a refill, I bought the larger 300g size. That one comes with a 2.5g scoop, which is really best when you're dealing with an animal over 25 lbs. Anyone buying this for a cat or small dog should buy one of the smaller sizes first, and when you need to refill, buy the largest size but keep the small scoop. (If you have a medium+ dog or are feeding 3+ cats who all share the same food, the large scoop is probably fine.)”

“Best for Kittens. Best price around. Best for the kittens. Rapid delivery. Twice the quantity, half the price of pet stores!”

“Works Perfect for Digestion. This product is perfect for both of my dog and cat's digestion, everytime when they have bad digest issue I just provide them with this, and they'll be healthy soon! Amazing healthy can food! And it's easy for storage too.”

“Great product. I have a stray cat with three little kittens (less than 8 weeks old) that come to my yard. Little Jesse (mama) looks like a skin and bones; the little ones, not much better. I have been adding the KMR to their diet in hope to improve their overall health and a change of survival. They all love it and eagerly wait for it in the morning and at night. It is a great product, reasonably priced and easy to serve. After opening the can, you can store it in the fridge for a couple of days. After several weeks, I hope to capture them place for adoption.”

“Didn't work for my cocker spaniel puppy. I bought the product because a professional trainer that I follow on YouTube recommended it but it didn't work for my 3 months puppy. I definitely don't like the powder type of food, my puppy won't eat it easily. I was very careful with the quantity but after two days using it I only got that my puppy throw up the hole thing. I eliminated the product from her food right away and she didn't throwed up again. I know it has good ingredients and woks for cats mostly. Maybe if they made it differently like a topper or something will work better for dogs”

“Great food additive. Omega 3 fish oil was recommended by my dog's veterinarian and my Missy hated finding the pill in her food, she would nudged it out and hide it. I tried powders but she is so finicky with her food. I find that this is easy to add to her food and she doesn't seem to mind. She is happy eating it and that makes me happy I got this product.”

“Great product. I have a very anxious cat since adding some new friends. This has helped calm him down and relax him so much.”

“Helpful product. Living in the desert with its dry air, keeping hydrated is essential. Making certain my kits stay hydrated is #1. Hydra Care is the answer! My kits love the flavor and I love the convenience: just shake and pour.”

“Seems Like Good Stuff. I purchased this following my dog's orthopedic surgery, as I was told he would now be more susceptible to arthritis. I looked into this and it does have appropriate studies attached to it. I have 3 dogs total; one who just had the surgery, the other an elderly 8 year old, and a younger dog. All of them really like the flavor and it makes a great food topper because of that. For my youngest dog, I split the 2 recommended scoops between his AM and PM meal, since he likes the taste so much and doesn't necessarily need the dosing all at once. The other 2 get their scoops at once. This is a small bottle, but the scoop is tiny so it would probably stretch for a while. Not sure about the effectiveness since I just started it, but I'm excited to see future results.”