Pet Naturals L-Lysine Immune & Respiratory Health Chicken-Flavored Chews Supplement for Cats, 60 count

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At a Glance

  • Immune Support
  • All Lifestages

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About This Item

Details

  • Easy way to promote your kitty’s health with L-lysine.
  • Support immune system, eye and respiratory health.
  • For kittens, adults and senior cats.
  • Purr-fect for multi-cat homes and stressful times like boarding.
  • Tasty chicken liver flavor.

Ingredient Information

Instructions

FAQ

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Questions & Answers

20 Customer Questions

are these crunchy

Answer by Chewy • Feb 14, 2021
These chews are soft and chewy.

Is the chicken liver flavor from real chicken? My cat has allergy to chicken.

Answer by Chewy • Aug 31, 2018
The chews are made using chicken that has been hydrolyzed or broken down into its component amino acids. This makes the chews safe to feed for cats with chicken allergies.

I see a review the cat parent very upset that Vermont is using Products from China I hope No I check all the time is Vermont Products made in USA or Canada

Answer by Chewy • Dec 13, 2020
These chews are manufactured in the USA. All of Pet Naturals of Vermont ingredients are obtained from the USA and other countries, including China. They test all of their ingredients before and after they are put into their products. They are regulated by the FDA, they are a member of the FDS and they are regulated by AAFCO.

Is chicken liver the only flavor? My cat does not seem to like the liver flavor.

Answer by Chewy • Oct 04, 2018
This chew is only available in the Chicken Liver Flavor.
Reviews
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3.6
Rated 3.6 out of 5 stars
747 Ratings
Terms & Conditions

541 Customer Reviews

Rated 1 out of 5 stars
By Karen on Dec 26, 2025

Disappointing

Lysine treats were recommended by my vet for my fat with constant respiratory issues..... I have 4 cats & none of them will touch them.... Even if I break them up

Lysine treats were recommended by my vet for my fat with constant respiratory issues..... I have 4 cats & none of them will touch them.... Even if I break them up into small pieces, not interested.

Rated 5 out of 5 stars
By Stephanie on Dec 22, 2025

Gladys, Midnight and Inky had wet, teary eyes, suggesting a URI coming on.

I gave one L-Lysine chewy to each of them once a day as the label states, and three days later, their symptoms not only had not gotten worse, they were almost completely

I gave one L-Lysine chewy to each of them once a day as the label states, and three days later, their symptoms not only had not gotten worse, they were almost completely gone

Rated 2 out of 5 stars
By Patricia on Jan 4, 2026

Will not eat it

Snuck it in their dried food and found it outside their bowl. Bought because vet recommended it. Will not eat it

Snuck it in their dried food and found it outside their bowl. Bought because vet recommended it. Will not eat it

Rated 2 out of 5 stars
By amy on Dec 2, 2025

My cats didn't like it.

One of my cats eat a few trats the 1st time I gave them to her, the other two wanted nothing to do with them. I ended up giving them to a friend.

One of my cats eat a few trats the 1st time I gave them to her, the other two wanted nothing to do with them. I ended up giving them to a friend.

Rated 3 out of 5 stars
By tori on Dec 21, 2025

soft and chewy

it probably works great i just didnt use it alone and gurt doesnt like treats much so i threw it in with his dry food

it probably works great i just didnt use it alone and gurt doesnt like treats much so i threw it in with his dry food

Rated 5 out of 5 stars
By Stacy on Sep 30, 2025

The product works

My cat Buddy Kitty had a terrible cold n runny eyes. I bought these to help him since he's new to the family and needed attention for his respiratory cold. He no

My cat Buddy Kitty had a terrible cold n runny eyes. I bought these to help him since he's new to the family and needed attention for his respiratory cold. He no longer has the cold anymore thanks to your product. I highly recommend this product to all!!! Thanks!!

Rated 1 out of 5 stars
By ALAN on Oct 7, 2025

cats will not eat these

have 12 strays that i feed twice daily. thought i would give them these to help keep them stay healthy.WRONG ,THEY WON'T TOUCH THESE,they IMMEDIATLY WALK AWAY.I

have 12 strays that i feed twice daily. thought i would give them these to help keep them stay healthy.WRONG ,THEY WON'T TOUCH THESE,they IMMEDIATLY WALK AWAY.I also have 1 domesticated cat she spits them out.what a waste of money.

Rated 4 out of 5 stars
By Samantha on Jan 20, 2026

None of my cats like these

I don't know what it is about these trees but they taste awful to my cats.

I don't know what it is about these trees but they taste awful to my cats.

Rated 1 out of 5 stars
By Chris on Oct 23, 2025

Cat won’t eat them.

I thought this would help with some of the mouth issues that my cat has, but he refuses to eat them. He will eat his hard crunchy treats, but he won’t eat these

I thought this would help with some of the mouth issues that my cat has, but he refuses to eat them. He will eat his hard crunchy treats, but he won’t eat these.

Rated 2 out of 5 stars
By Anita on Sep 18, 2025

No Go For My Guy

I ordered this and a few others as Zesty Paws seems to be having a supply issue with theirs. Unfortunately, no amount of breaking them down or mixing them with food

I ordered this and a few others as Zesty Paws seems to be having a supply issue with theirs. Unfortunately, no amount of breaking them down or mixing them with food worked, my little dude would not eat them.