Under the Weather L-Lysine Soft Chews Cat Supplement, 60-count

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Give your BFF amino acid support with Under the Weather’s L-lysine Soft Chews Cat Supplement. It contains a generous amount of L-lysine, an amino acid that helps your feline friend maintain a normal immune system response and respiratory function. These veterinarian-formulated soft chews are manufactured in Vermont without any corn, artificial flavors or dyes and have a purr-worthy whitefish flavor your kitty will go head-over-tail for! Not only will your kitty love the taste, but she’ll also enjoy the cute fish-shape design.

Key Benefits
  • Offers your adult cat amino acid support.
  • L-lysine is an amino acid that may help support your kitty’s respiratory system and normal immune system response.
  • Soft chews with a palatable whitefish flavor.
  • Completely free of corn, artificial flavors and dyes.
  • Made in the USA.

For animal use only. Keep out of the reach of children and animals. In case of accidental overdose, contact a health professional immediately.

See all items by Under the Weather

  • Item Number
  • Weight
    3.17 ounces
  • Lifestage
  • Food Form
  • Product Form
    Soft Chew
Nutritional Info

Brewers Dried Yeast, L-Lysine Monohydrate, Vegetable Glycerin, Whitefish, Sunflower Lecithin, Arabic Gum, Coconut Oil, Guar Gum, Buffered White Distilled Vinegar, Citric Acid, Silicon Dioxide, Tetrasodium Pyrophosphate, Vegetable Oil, Natural Mixed Tocopherols (A Preservative), Rosemary Extract (Natural Flavor), Green Tea Extract (Natural Flavor), Spearmint (Natural Flavor).

Caloric Content

3400 kcal/kg, 5.1 kcal/chew (1.5 g)

Guaranteed Analysis
Crude Protein40.3% min
Crude Fat8.3% min
Crude Fiber1.5% max
Moisture11.5% max
L-Lysine Monohydrochloride250 mg
Feeding Instructions
WeightDaily Feeding (chew)
Up to 15 lbs1
Over 15 lbs2

Why should I include vitamins & supplements in my pet’s diet?

Most commercial pet foods include baseline vitamins and nutrients, but some may not have the adequate amount to suit your pet’s exact health needs. Like in humans, vitamins and supplements can help support your pet’s long-term health, regulating everything from digestion to muscle growth. Consult your veterinarian to determine the best vitamins and supplements for your furry friend.

How often should I give this supplement to my pet?

It is recommended to give the suggested dosage based off your pet’s weight. Please refer to the Feeding Instructions tab and consult with your veterinarian for more information.

Is this supplement safe to use with the medication my pet is currently taking?

If your pet has a medical condition and is taking other medication, we recommend consulting with your veterinarian to ensure that this supplement is safe to use.

My pet is allergic to certain ingredients, will this product be safe to use?

For a complete list of ingredients, click on the 'Nutritional Info' tab, next to the 'Description' tab, just under the product photos. If you are unsure about the safety of this product for your pet, we recommend consulting with your veterinarian.

Does this product come in other product forms?

For a complete assortment of products by the manufacturer of this supplement, click on the link next to the item name at the top of the page. You can also find an assortment of supplements across all product forms on our page.

Rating: 1.7 of 5 stars 5 Reviews 5 Reviews 1.8 out of 5 Stars

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40% Recommend

40% of reviewersrecommend this product

Rating: 1.7 of 5 stars 1.8 / 5

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  • 1 out of 5 stars

    Extremely hard.

    By on

    Description says soft but these are rock hard. My cat won't touch them.waste of money.

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  • 1 out of 5 stars

    Not For My Cat:

    By on

    I thought this L-Lysine might help my cat. But it made him sicker. It might work on other cats, but not mine.

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  • 1 out of 5 stars

    my cats do not like the flavor

    By on

    none of my cats will eat them they apparently do not like the flavor

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  • 5 out of 5 stars

    Healthy Supplement

    By on

    I have 2 older cats, both strays. I give them this supplement for their over all well being. One cat loves to eat, thinks its a treat. The other, picky about flavors, I need to break-up and put in her food. She then will consume with her morning breakfast. There health is great. Recommend for all cats young and old.

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  • 1 out of 5 stars

    Did not eat

    By on

    We have 9 fur babies trying to keep them healthy. Unfortunately we could not get any of the babies to eat one. We will continue to put the powder in their food.

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