Allergy & Immune Bites Cat Supplement
Verified Sep 22, 2026
This is a soft chew supplement for cats designed to support immune function, using L-lysine, a yeast fermentate (EpiCor), astragalus root, and quercetin as key actives. The chews are flavored with chicken, pork liver, bacon flavor, and cheese to make them more palatable for picky cats. It’s meant to be given alongside a complete and balanced cat food, not as a primary diet.
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Solid Option
This supplement is formulated for cats whose owners are looking to support immune health on top of their regular diet. It combines amino acid support from L-lysine with a yeast fermentate and herbal and antioxidant ingredients. It may suit cats who take chews easily and don’t have issues with chicken, pork, or dairy ingredients.
Computed from 3 of 3 applicable checks. Missing data is skipped, never counted against a food.
The KibbleLab Score (1–10) is assessed from publicly available product data. Our evaluation is science-based, not marketing-based.
KibbleLab may earn an affiliate commission when you buy through a link. No one can pay for a higher score, or to change what we recommend for your pet.
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
- Includes L-lysine, which is commonly used in cats for extra amino acid support.
- Contains a yeast fermentate and astragalus root, which may help modulate immune responses.
- Soft chew format with chicken, pork liver, and bacon flavor can make it easier to give than pills for many cats.
- Intended as a supplement, so it can be added to most complete cat diets without changing their main food.
Considerations
- This is not a complete and balanced diet, so it should only be used alongside a regular cat food.
- Contains chicken, pork liver, and cheese, so it is not appropriate for cats with poultry, pork, or dairy allergies.
- Some cats with sensitive stomachs may not tolerate multiple flavorings and rich ingredients in chew treats.
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
L-Lysine
L‑Lysine is the biologically active form of the essential amino acid lysine used in pet foods and supplements to support protein synthesis, muscle maintenance, immune function and tissue repair, and is particularly useful when diets are low in animal protein or for growing, pregnant or convalescent animals. While generally safe when used to correct a deficiency, excessive supplementation can cause amino‑acid imbalances (notably affecting arginine in cats) and clinical benefits for conditions like feline herpesvirus are mixed, so dosing should follow a veterinarian’s guidance.
02
Dried Fermentate
Dried fermentate is a dried fermentation product—typically derived from yeast or beneficial bacteria—used in pet foods as a palatant and source of bioactive postbiotic compounds (peptides, organic acids, nucleotides and B‑vitamins) that can enhance flavor and support digestive and immune health. Its nutritional contribution is usually minor but functional, improving food acceptance and supplying trace micronutrients; because composition varies with the source and processing it is not a complete protein, may contain yeast derivatives or added salts, and pets with specific sensitivities should be checked by a veterinarian.
03
Saccharomyces Cerevisiae
Saccharomyces cerevisiae is a species of yeast commonly used in pet foods and supplements as a source of protein, B-vitamins, beta‑glucans and mannan‑oligosaccharides that support digestive health, beneficial gut microbes and immune function. It is generally safe and beneficial for most dogs and cats when used as a deactivated yeast or yeast extract, though pets with specific yeast sensitivities or severely immunocompromised animals should avoid live yeast preparations and owners should consult their veterinarian if concerned.
04
EpiCor Postbiotic
EpiCor postbiotic is a dried yeast fermentate used in pet foods as a functional ingredient to support digestive and immune health; because it contains fermentation metabolites rather than live microbes it is heat-stable and suitable for inclusion in kibble and canned diets. Research and manufacturer-supported studies suggest it can help modulate immune responses and support a balanced gut environment and antioxidant status in dogs and cats, but it is not a complete nutrient and pets with known yeast sensitivities or serious health conditions should be discussed with a veterinarian before use.
05
Astragalus
Astragalus is an herbal botanical used in pet foods and supplements as an immune-supporting ingredient and antioxidant rather than a macronutrient; its root contains polysaccharides and flavonoids that are thought to have adaptogenic and immune-modulating effects for dogs and cats. Evidence in companion animals is limited, so benefits are modest and product quality varies; caretakers should be aware of possible gastrointestinal upset, allergic reactions, and interactions with immunosuppressive or anticoagulant medications and consult their veterinarian before use.
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Product Details & Brand
Product Specs
Brand
Zesty Paws is a leading brand in the pet supplement category offering premium-quality chews, oils, and functional treats for dogs and cats. The brand is positioned as a fun and approachable yet scientifically informed line for pet wellness, targeting pet owners seeking preventive health solutions.
Manufacturer
Zesty Paws follows U.S. FDA regulations for pet supplements and employs manufacturing partners that comply with cGMP (Current Good Manufacturing Practices). The company emphasizes ingredient transparency and product testing to ensure quality, potency, and safety.
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 Zesty Paws Allergy & Immune Bites Cat Supplement.
Source: FDA animal food recall listings back to January 2019 · Checked daily, last on Oct 15, 2026
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Frequently Asked Questions
Has Zesty Paws ever been recalled?
We have no recalls on record for Zesty Paws. 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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