USDA Organic Mushroom Blend Immune Support Supplement
Verified Sep 15, 2026
This is a low-calorie mushroom powder supplement for dogs and cats, using a blend of ten organic mushroom species. It’s based on fruiting bodies only, which are naturally rich in beta-glucans, compounds often used to support immune function. It’s designed to be added to a complete diet rather than used as a primary food source.
Jump to ingredientsAffiliate link · may earn a commission at no extra cost to you
Strong Choice
This mushroom blend is a specialized supplement aimed at supporting immune function in both dogs and cats. It provides a variety of organic mushroom species in a simple, low-calorie powder that can be mixed with regular food. It’s best suited for otherwise healthy pets whose owners are interested in adding a mushroom-based supplement to their diet.
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
- Uses a blend of ten named mushroom species, giving a broad range of mushroom-derived compounds.
- All mushrooms listed are organic and from fruiting bodies, which are typically richer in beta-glucans than mycelium.
- Very low in calories, so it adds minimal extra energy to the diet.
- Formulated for both dogs and cats, which can be convenient in multi-pet households.
Considerations
- This is a supplement, not a complete diet, so it must be fed alongside a balanced dog or cat food.
- Pets with sensitive stomachs may need a gradual introduction, as mushroom blends can sometimes cause mild digestive upset.
- Evidence for mushroom supplements in pets is still emerging, so benefits may vary from one animal to another.
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
Lion's Mane
Lion’s mane (Hericium erinaceus) is used in pet foods and supplements as a functional ingredient rather than a primary nutrient, prized for bioactive compounds (hericenones, erinacines and beta‑glucans) that may support cognitive function, nerve health, immune modulation and digestive wellbeing. While generally well tolerated by dogs and cats, evidence in pets is limited so benefits are considered supportive rather than curative; pets can occasionally experience gastrointestinal upset or allergic reactions, and owners should use products from reputable sources and consult their veterinarian—especially for animals on medications or with immune conditions.
02
Reishi
Reishi (Ganoderma lucidum) is a medicinal mushroom used in pet foods and supplements as a functional ingredient for immune support and antioxidant benefits rather than as a primary nutrient. It contains polysaccharides and triterpenes that may help modulate immunity and inflammation, but evidence in dogs and cats is limited, product quality and dosing vary, and it can interact with immunosuppressive or anticoagulant medications or cause gastrointestinal upset, so consult your veterinarian before use.
03
Shiitake
Shiitake mushrooms are used in pet foods mainly as a flavoring/functional ingredient that provides modest fiber, B vitamins, minerals and bioactive beta‑glucans that may support immune health. When cooked and included in small amounts they are generally safe and palatable for dogs and cats, but should be used only as a supplement to complete diets because raw or improperly prepared shiitake can cause gastrointestinal upset, rare skin reactions, or carry contaminants, and mushrooms from unknown sources should be avoided.
04
Cordyceps
Cordyceps is a medicinal mushroom often included in pet foods or supplements as a functional ingredient rather than a primary nutrient, marketed for its antioxidant properties and potential to support energy, respiratory function, and immune health in dogs and cats. Evidence in companion animals is limited, so benefits are not guaranteed; quality and dosing vary between products and there can be risks of gastrointestinal upset or interactions with medications (for example immunosuppressants or blood thinners), so consult your veterinarian before use, especially for pregnant, nursing, or medicated pets.
05
Maitake
Maitake (Grifola frondosa) is a culinary and medicinal mushroom used in pet foods and supplements as a functional ingredient that supplies dietary fiber and bioactive polysaccharides (notably beta‑glucans) thought to support immune response and provide antioxidant benefits. It should be considered a complementary ingredient rather than a primary nutrient; use food‑grade, cultivated sources and consult your veterinarian—especially for pets with immune disorders, those on immunosuppressants, pregnant animals, or pets prone to gastrointestinal sensitivity—as wild mushrooms can be toxic and overconsumption may cause digestive upset.
Product Details & Brand
Product Specs
Brand
Fera Pets is a premium pet supplement brand offering veterinarian-formulated supplements for dogs and cats, including probiotics, joint support, and omega-3 products. The brand targets pet owners seeking science-backed natural supplements for holistic health and longevity.
Manufacturer
Fera Pets products are formulated under veterinary guidance and manufactured in FDA-registered, Good Manufacturing Practice (GMP) compliant facilities in the United States. They follow stringent quality control protocols and source ingredients that meet human-grade standards.
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 Fera Pets USDA Organic Mushroom Blend Immune Support Supplement.
Source: FDA animal food recall listings back to January 2019 · Checked daily, last on Oct 15, 2026
Sign up for the full picture
Ingredient Check
We'll check every ingredient against your pet's profile.
Feeding Calculator
Personalized portion sizes based on your pet's weight, age, and activity level.
Side-by-Side Comparison
Compare this food with alternatives to find the best fit.
Similar Foods
Post your dog's report card and challenge friends to check their food.
Frequently Asked Questions
Has Fera Pets ever been recalled?
We have no recalls on record for Fera Pets. 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.
Continue with Google
Continue with Facebook