ImmuShield Chews Supplement
Verified May 19, 2026
A soft chew supplement for dogs designed to support immune and digestive health. It uses a high-protein egg product and brewers dried yeast as key ingredients, with added probiotics and betaine described to help the gut and overall immune function. This is meant to be given alongside a complete and balanced dog food, not as the main diet.
This is a thoughtfully designed immune and gut-support chew that could be useful for dogs who need extra support around stress, illness, travel, or heavy activity. The use of high-protein egg product and yeast provides bioactive components that may benefit immune health, and the inclusion of probiotics is a plus for digestive support. It’s best viewed as an add-on to a good quality diet for generally healthy dogs, rather than a stand-alone solution for medical issues.
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 high-protein egg product, which is a rich source of bioactive proteins and antibodies that may support immune function.
- Includes brewers dried yeast, which can provide beneficial nutrients and compounds that may support gut and immune health.
- Contains probiotics (such as Lactobacillus acidophilus) aimed at supporting a healthy intestinal microbiome and digestion.
- Soft chew format is usually easy to give and can work well for dogs that resist powders or pills.
Considerations
- This is a supplement, not a complete and balanced diet, so it must be fed along with a regular dog food that meets nutritional requirements.
- Egg is a common food allergen for some dogs, so this product is not appropriate if your dog has known egg sensitivities.
- Liver (porcine) and yeast can occasionally trigger reactions in very food-sensitive dogs, so introduce gradually and watch for any digestive upset.
- As with any immune-support product, it should not be used as a replacement for veterinary care if your dog has a chronic illness or significant digestive problems.
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
Brewer's Yeast
Brewer's yeast (deactivated Saccharomyces cerevisiae) is commonly used in dog and cat foods as a flavor enhancer and supplemental source of protein, B‑complex vitamins, trace minerals and immunomodulating components such as beta‑glucans. It can support skin, coat and general nutritional status, but may cause gastrointestinal upset or allergic reactions in yeast‑sensitive pets, is not a live probiotic, and should be used cautiously in animals prone to purine‑related issues or those receiving antifungal medications.
02
Citric Acid
Citric acid is commonly used in pet foods as a preservative, pH adjuster and mild flavoring agent that helps inhibit microbial growth and chelate metals to slow fat oxidation and preserve color and freshness. It provides no nutritional value for dogs or cats and is generally safe at the low levels used in commercial diets, though concentrated forms or excessive intake can cause gastrointestinal upset or decreased palatability in sensitive animals.
03
Flaxseed Oil
Flaxseed oil is used in pet foods and supplements as a concentrated fat source rich in omega‑3 alpha‑linolenic acid (ALA) and omega‑6 linoleic acid to support skin and coat condition and provide essential fatty acids. While it can improve coat quality and has modest anti‑inflammatory potential in dogs, cats convert ALA to the biologically active EPA/DHA poorly so fish or algal oils are preferred for long‑chain omega‑3s; flax oil is calorie‑dense, prone to oxidation (store refrigerated and use antioxidants), and may cause gastrointestinal upset in some animals, so dosing should follow a veterinarian’s guidance.
04
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.
05
Pork Liver
Pork liver is an organ meat used in pet foods as a nutrient‑dense source of high‑quality protein and concentrated vitamins and minerals—notably vitamin A, B vitamins (including B12 and folate), iron and copper—that support red blood cell production, skin/coat condition and overall metabolism. Because liver is very rich in vitamin A and certain minerals, it should be included in limited amounts to avoid hypervitaminosis A or mineral imbalances and must be properly processed to reduce pathogen risk; pets with urinary stone issues or a pork sensitivity should use caution.
Product Details & Brand
Product Specs
Brand
Dr. Tim’s is a premium pet food brand designed for active, athletic, and performance animals, with a focus on high-protein, high-fat formulas for optimal endurance and health. Products are formulated by veterinarians using advanced nutritional science, with options for dogs and cats that include dry kibble and treats. The brand appeals to pet owners seeking science-based formulas without marketing gimmicks.
Visit Dr. Tim'sManufacturer
Manufactured in the USA under USDA and AAFCO regulations. Dr. Tim’s works with trusted co-packing facilities that adhere to strict quality and safety standards, including hazard analysis and critical control point (HACCP) protocols and routine nutritional testing to ensure product consistency.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
Dr. Tim's ImmuShield Chews Supplement has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has Dr. Tim's ever been recalled?
We have no recalls on record for Dr. Tim's. 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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