L-Lysine Immune Support Chews
Verified Aug 17, 2026
A soft chew supplement for cats that provides added L-lysine along with chicken meal and chicken liver as palatable protein sources. It is designed to offer extra amino acid support for the immune system and can be used for kittens through senior cats. Each chew is salmon flavored to help with acceptance in picky cats.
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Strong Choice
This is a straightforward L-lysine chew supplement that delivers a modest lysine dose per treat in a very palatable chicken-based formula. It can be useful when you specifically want to add lysine on top of a complete diet, especially for cats that are easy to pill only with difficulty. As with any supplement, it should be used alongside, not instead of, a balanced cat food and appropriate veterinary care.
Computed from 3 of 3 applicable checks. Missing data is skipped, never counted against a food.
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At a Glance
Where these benefits come from
Benefits the manufacturer highlights in its own product marketing. KibbleLab lists them for reference and does not verify these claims.KibbleLab Review
Strengths
- Provides a defined amount of added L-lysine per chew, making dosing more predictable.
- Chicken meal, chicken liver, and salmon oil help make the chews tasty for most cats, which makes daily use easier.
- Calorie content is clearly stated per chew, which helps you factor it into your cat’s overall daily intake.
- Multiple preservatives are included to keep the chews stable and safe over their shelf life.
Considerations
- Chicken meal and chicken liver mean this is not suitable for cats with chicken allergies or intolerances.
- The product is a supplement only and does not provide complete and balanced nutrition, so it must be given with a proper cat diet.
- Sugar, molasses, and starches add extra calories and may not be ideal for overweight or diabetic cats.
- Contains several preservatives, which are safe but may not fit owner preference for very minimal-ingredient products.
Full Ingredient List
Ingredients and analysis reflect manufacturer data at the time of our last update and can change without notice. Always check the actual product packaging before feeding.
Ingredient filtering helps identify compatible options but is not a substitute for a veterinary elimination diet.
Top 5 Ingredients Explained
01
Chicken
Chicken is a common animal-based protein in dog and cat foods, supplying essential amino acids, B vitamins, and energy-dense fats that support muscle maintenance, growth, and overall health; for cats it also contributes toward dietary taurine but must be present in sufficient amounts or provided via supplementation. It is prized for its digestibility and palatability, though some pets develop sensitivities or allergies to chicken, and nutritional value and safety depend on ingredient quality and processing—raw chicken carries pathogen risks and whole bones can pose choking or GI hazards.
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02
Chicken Liver
Chicken liver is a nutrient-dense organ meat commonly used in pet foods and treats as a highly palatable protein source and flavor enhancer, providing concentrated vitamins (especially vitamin A and B-complex), iron, and copper that support energy metabolism, red blood cell formation, and skin/coat health in both dogs and cats. Because it is so rich, liver should be fed in moderation—excessive intake can cause vitamin A toxicity, and its high fat content and risk of bacterial contamination mean it should be properly sourced or cooked and limited for pets with pancreatitis or specific dietary restrictions.
03
Glycerol
Glycerol (glycerin) is used in pet foods primarily as a humectant and sweetening agent to retain moisture, improve texture and palatability, and serve as a solvent or carrier in wet foods, treats, and liquid supplements. It provides a modest source of metabolizable energy for dogs and cats, but in large amounts can cause gastrointestinal upset and may affect blood glucose, so products intended for diabetic pets or sensitive animals should be used with caution.
04
Cane Molasses
Cane molasses is a viscous sweetener and palatability enhancer used in pet foods and treats to add simple carbohydrates, help bind ingredients, and contribute trace minerals like iron, calcium, potassium and magnesium along with small amounts of B vitamins. It can improve taste and texture but is high in sugars and calories, so it should be used sparingly—excessive intake can contribute to weight gain, dental issues, or unstable blood glucose in diabetic or obese pets.
05
L-Lysine Hydrochloride
L‑Lysine hydrochloride is a highly bioavailable supplemental essential amino acid commonly added to pet foods to ensure adequate lysine for protein synthesis, growth, tissue repair and immune function in both dogs and cats. The HCl form is stable and easy to formulate, but supplementation should follow AAFCO or veterinary guidelines because excess lysine can create amino acid imbalances and routine therapeutic uses (for example against feline herpesvirus) have mixed, inconclusive evidence.
Nutritional Breakdown
How to read As Fed versus Dry Matter
As fed shows the numbers straight off the label, water included. Dry matter removes the water so you can compare a wet food and a dry food fairly.What is calorie density
How many calories the food packs per unit. Denser foods mean smaller portions for the same calories.Not sure how much of this to feed?
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Product Details & Brand
Product Specs
Brand
Under the Weather Pet is a pet food and supplement brand offering freeze-dried bland diets, broth toppers, and wellness chews for dogs and cats. The brand targets health-conscious pet owners seeking convenient, vet-formulated solutions for digestive upset and recovery support.
Manufacturer
All Under the Weather products are manufactured in the United States in facilities that follow FDA and USDA guidelines. The company emphasizes quality control, sourcing premium human-grade ingredients, and producing small batches to ensure safety and nutritional integrity.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
No recall is listed for Under the Weather Pet L-Lysine Immune Support Chews.
Source: FDA animal food recall listings back to January 2019 · Checked daily, last on Aug 31, 2026
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Frequently Asked Questions
Has Under the Weather Pet ever been recalled?
We have no recalls on record for Under the Weather Pet. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
How does KibbleLab rate foods?
Our scores are based on ingredient composition, nutritional profile, AAFCO compliance, and health considerations. We don't penalize by-products, grains, or synthetic preservatives. Brands cannot pay for higher scores.
Is KibbleLab a substitute for veterinary advice?
No. KibbleLab provides data-driven food analysis, not medical advice. Always consult your veterinarian before making dietary changes, especially for pets with health conditions.
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
KibbleLab may earn affiliate commissions through product links. No one can pay for a higher score, or to change what we recommend for your pet.
Product data sourced from manufacturer websites, AAFCO statements, and FDA recall listings. Last verified dates reflect our most recent data check. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
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