Allergy & Immune Chicken Cat Mousse Supplement
Verified Jun 17, 2026
This is a chicken-flavored mousse supplement for cats designed to be given alongside their regular diet. It features fish oil for omega fatty acids, EpiCor Pets (a yeast fermentate), L-lysine, astragalus root, bromelain, and quercetin to support skin, coat, and immune function. It’s intended for cats over 12 weeks of age who may benefit from extra allergy and immune support.
A thoughtfully designed cat supplement that combines fish oil, yeast fermentate, and several botanicals aimed at supporting immune function and skin health. It’s appropriate for most healthy cats over 12 weeks old whose owners are looking for an added boost on top of a complete and balanced diet. As with any supplement, it should complement (not replace) a good-quality cat food, and sensitive cats may need a gradual introduction.
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
KibbleLab Review
Strengths
- Uses fish oil as a source of omega fatty acids, which can be helpful for skin and coat health in many cats.
- Includes EpiCor Pets (a Saccharomyces cerevisiae fermentate), which has some supportive evidence for immune and gut health in animals.
- Contains multiple bioactive ingredients such as quercetin, bromelain, astragalus root, and L-lysine that are commonly used to support immune and skin function.
- Mousse texture and sachet format may be palatable and easy to give for many cats, either alone or mixed with food.
Considerations
- This is a supplement only and does not provide complete and balanced nutrition, so it must be used along with a regular cat diet.
- Fish oil and fish-derived ingredients can be problematic for cats with fish allergies or sensitivities.
- Some cats have sensitive stomachs; introducing multiple active ingredients at once may cause mild digestive upset in a small number of cats, so a gradual introduction is important.
- Not recommended for kittens under 12 weeks, so it’s not suitable for very young kittens with allergy or immune concerns.
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
Fish Oil
Fish oil is commonly added to pet foods as a concentrated source of healthy fats—primarily the omega‑3 long‑chain fatty acids EPA and DHA—to boost energy density and palatability. EPA and DHA support skin and coat condition, joint and cardiovascular health, and brain development (cats require preformed DHA), but fish oil is calorie‑dense, can oxidize if not properly stabilized, may contain environmental contaminants unless purified, and high doses can cause gastrointestinal upset or affect blood clotting, so product quality and appropriate dosing are important.
02
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.
03
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.
04
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.
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.
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.
Visit Zesty PawsManufacturer
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
Zesty Paws Allergy & Immune Chicken Cat Mousse Supplement has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has Zesty Paws ever been recalled?
We have no recalls on record for Zesty Paws. We monitor the FDA Pet Food Recall Database daily.
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 database. Last verified dates reflect our most recent data check.
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