Immune + Seasonal Allergy Support Soft Chew Supplement for Dogs
Verified Jun 4, 2026
This is a soft chew supplement for dogs of all ages designed to support immune function, skin health, and gut bacteria balance. It uses bovine colostrum, prebiotics, probiotics, postbiotics, turmeric, krill oil, and bee pollen as its main active ingredients. It’s meant to be given alongside a complete diet, especially for dogs with occasional seasonal skin or allergy issues.
Nutritionally, this is a thoughtfully formulated immune and seasonal-allergy support supplement that combines several evidence-based ingredients for gut and immune health. Colostrum, prebiotics, a probiotic (Bacillus coagulans), and yeast fermentate work together to support the microbiome, while krill oil and turmeric can add anti-inflammatory and skin-supportive benefits. It’s best used as an add-on to a balanced dog food rather than a primary source of nutrition, and dogs with known food allergies will need careful consideration of the protein sources included.
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
- Includes multiple gut- and immune-supportive components, including bovine colostrum, prebiotics (Bio-MOS), a probiotic, and yeast fermentate, which can work together to support the microbiome.
- Contains krill oil and turmeric, which can provide omega-3 fatty acids and antioxidant/anti-inflammatory compounds that may help skin and immune function.
- Soft chew format is generally easy to give and can work well for dogs across life stages when used as directed.
- Provides clear, weight-based dosing so owners can give an appropriate amount for their dog’s size.
Considerations
- This is a supplement, not a complete and balanced diet, so it must be fed alongside a regular dog food that meets all nutritional requirements.
- Includes several animal and yeast-derived ingredients (bovine colostrum, dried beef, brewers dried yeast, bee pollen), which may not be appropriate for dogs with specific protein or bee-product allergies.
- Licorice root is present; while the amount is small, dogs with certain health conditions (like some heart or blood pressure issues) should only use such products under veterinary guidance.
- Puppies under 12 weeks and dogs with chronic health problems should only receive this type of supplement after discussing it with a veterinarian.
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
Colostrum
Colostrum is the antibody‑rich first milk from mammals used in pet foods and supplements to provide immune support and gut‑health benefits through concentrated proteins, immunoglobulins, growth factors and other bioactive compounds. It may aid neonatal passive immunity, intestinal barrier function and recovery during illness or stress in dogs and cats, but efficacy depends on source and processing, and it can cause digestive upset or allergic reactions in animals with dairy sensitivity and should not replace proper neonatal care or vaccinations.
02
Bio-MOS
Bio-MOS is a proprietary mannan-oligosaccharide (MOS) derived from yeast cell walls used in pet foods as a prebiotic functional ingredient to support digestive health by promoting beneficial gut microflora, improving stool quality, and helping to modulate mucosal immune responses. It is generally safe for dogs and cats and provides no calories, may be useful during stress, weaning or antibiotic recovery, but it is not a probiotic or replacement for veterinary treatment and efficacy can vary with dose and individual animals.
03
Krill Oil
Krill oil is a marine-sourced supplement used in pet foods and as an add-on to provide concentrated omega-3 fatty acids (EPA and DHA) often in a highly bioavailable phospholipid form and also contains the antioxidant astaxanthin. It can support skin and coat health, joint comfort, cognitive and cardiovascular function in dogs and cats, but owners should watch for possible gastrointestinal upset, crustacean allergy, interactions with anticoagulant medications, and choose sustainably sourced, properly stabilized products—consult your veterinarian for appropriate dosing.
04
Turmeric
Turmeric is a spice used in pet foods and supplements primarily for its antioxidant and anti-inflammatory compound curcumin, and is included as a flavor/colorant or complementary joint and digestive support ingredient rather than a primary nutrient. It can offer potential benefits—particularly for dogs—when properly formulated with a bioavailability enhancer (e.g., black pepper or fat), but large amounts may cause gastrointestinal upset, cats can be more sensitive to concentrated spices, and turmeric/curcumin may interact with blood thinners or diabetes medications, so veterinary guidance is recommended before use.
05
Bee Pollen
Bee pollen is used as a natural supplement or ingredient in pet foods and treats, offering small amounts of protein, amino acids, B-vitamins, minerals, enzymes and antioxidants that are marketed to support skin and coat, immune function and general vitality in dogs and cats. While it can provide beneficial micronutrients and antioxidant effects, bee pollen products vary widely in composition and purity and can trigger allergic reactions in sensitive animals, so it should be introduced cautiously, not used as a complete nutritional source, and discussed with a veterinarian before regular use.
Product Details & Brand
Product Specs
Brand
Nulo is a premium pet food brand focused on grain-free and high-meat-protein recipes for dogs and cats. It is positioned as a performance and wellness brand, emphasizing quality ingredients, ancestral diet alignment, and the inclusion of probiotics to support digestive health.
Visit NuloManufacturer
Nulo partners with trusted manufacturing facilities in the United States and Canada that maintain high food safety standards including HACCP and SQF certification. Nulo oversees ingredient sourcing and quality control to ensure nutritional accuracy and consistency across batches.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
Nulo Immune + Seasonal Allergy Support Soft Chew Supplement for Dogs has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has Nulo ever been recalled?
We have no recalls on record for Nulo. 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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