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The best vitamins and supplements to support your dog’s immune system

The best vitamins and supplements to support your dog’s immune system

Protect your pup against seasonal, skin, and environmental allergies with these 6 nutrient-rich supplements.

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Summary

  • Dogs suffer from allergies, too. Whether it’s seasonal, skin, food, flea, or environmental allergies, some vitamins help with specific issues or a multitude, so make sure to read the label to make sure it’s the right fit.
  • Look for these common ingredients. According to our vets, vitamin ingredients for a healthy immune system should contain antioxidants, all-natural immune boosters, mushrooms, vitamin A, and vitamin E.
  • Dog vitamin ingredients aren’t regulated by the FDA. Use caution when choosing vitamins and when in doubt, consult your vet.

Like humans, sometimes dogs’ immune systems need a boost to fight off allergies and inflammation. Besides exercise and eating a healthy diet, immune system vitamins are an excellent option to help support your doggie’s health.

6 vitamins to support your dog’s immune system

  1. Zesty Paws Aller-Immune Bites
  2. Native Pet Allergy Immunity for Dogs
  3. Premium Care Aller-Immune Chews
  4. PetHonesty Allergy Support
  5. Natural Dog Company Salmon Oil
  6. Vet Classics CAS Options Extra Strength Immune Support

Our favorite immune vitamins for dogs, reviewed

Brown dog in grass
📷 by Ryan Stone


How we picked our favorite supplements
  • Examined ingredients with our vets — We checked ingredient lists with our vets to ensure nothing icky went into these supplements.
  • Chose vet-trusted brands — With so many supplements on the market, we chose vitamins formulated by brands with vets or pet nutritionists.
  • We selected different types of products — From chews, oils, and tablets, we wanted dog owners to have a variety of products to choose from for their pup.

Does your dog need a supplement to support their immune system?

Dogs eating a well-balanced diet generally don’t need extra vitamins. Senior dogs and pups with certain conditions — like seasonal allergies — may benefit from vitamins and supplements. When a doggie’s body responds to allergens, such as pollen, it causes inflammation. Aller-immune supplements for dogs can help reduce inflammation and uncomfortable symptoms. Always talk to your vet about the best way to manage your dog’s allergies.

How doggie immune supplements can help your pup

Immune supplements can help combat allergy symptoms — like watery eyes and itchy skin — and provide digestive support. They may also help reduce cancers, arthritis, and heart conditions. According to our vet, Dr. Dwight Alleyne, they can even protect your dog from infections.

What ingredients should dog owners look for?

Immune supplements should contain well-known antioxidants, all-natural immune boosters, and vitamins. Below is a list of some of the most common and nutrient-dense ingredients found in vitamins.

  • Mushrooms. While wild mushrooms are toxic to dogs, not all are bad. Shiitake, reishi, and turkey tail mushrooms are known for their immune-boosting qualities.
  • Fish oil. Fish oils, like salmon oil, are a common ingredient found in dog vitamins and supplements. They help support a canine’s heart health and relieve common allergy symptoms, like dry and itchy skin.
  • Vitamin E. This vitamin helps support your dog’s cell function and fat metabolism. It also defends against oxidative damage.
  • Vitamin B. B Vitamins include a variety of vitamins, including thiamine, riboflavin, B12, niacin, and folic acids. These vitamins are essential to your dog’s health and aid in enzyme function, neural tissue, and nervous system function.
  • Vitamin A. This vitamin is commonly found in carrots. It’s essential for growth, fetal development, eye health, and immune and cell function.

👉 Vitamin C isn’t an essential ingredient in vitamins and supplements. Providing too much vitamin C in a dog’s diet can have negative effects on your dog’s health.

Can your dog overdose on supplements?

Yes. It’s important to always pay attention to dosing instructions and the age requirements listed on the bottle. Even vitamins that are good for your dog, like vitamin A and zinc, can have adverse effects if given in high doses. Make sure to talk with your vet before introducing a new vitamin or supplement to your dog’s diet.

👉 This is very important if your dog has certain medical conditions or is taking other medications.  

Other ways to strengthen your dog’s immune system

Daily exercise — One of the best ways to support your dog’s immune system and health is by making sure they get their daily exercise. Stay active with Fido by walking, jogging, or swimming.

Feed your dog a high-quality diet — It’s important to feed your dog high-quality, commercial kibble for a well-balanced diet. To provide additional supplements, you can use fruits and vegetables that are safe for your canine to eat.

Probiotics — Recent studies have shown probiotics can have a positive effect on your dog’s digestive system. While the research is early, it’s best to use a high-quality, multi-strain, and dog-specific probiotic supplement to support good bacteria in your dog’s gut. Dr. Alleyne also recommends using probiotic products with prebiotics or psyllium for additional digestive support.

Frequently asked questions

What vitamins are good for a dog’s immune system?

This depends on your pet’s nutritional needs and allergies. Overall, vitamins A, B, and E, and choline are essential, in moderate doses, for your dog’s health.

How can I strengthen my dog’s immune system?

Daily exercise and a well-balanced diet are the best ways to support your dog’s immune system. Vitamins and supplements can also provide support for allergies or environmental stressors.

What foods are good for doggie immune systems?

Commercial dog foods labeled “complete and balanced” are formulated to provide proper nutritional support based on your dog’s age, weight, or health condition. Fruits and vegetables like green beans and pumpkin can also provide extra nutritional boosts.

What can weaken a dog’s immune system?

Environmental stressors, like seasonal, food, flea, or skin allergies, toxic foods, lack of exercise, stressful situations, and an imbalanced diet can weaken a doggie’s immune system.

What vitamins are toxic to dogs?

Many ingredients found in human vitamins and supplements are toxic to dogs. Some of the most common include xylitol, vitamin D3, iron, coffee extracts, alpha-lipoic acid, also known as thioctic acid (found in foods like yeast, broccoli, spinach, potatoes, and meat).

Are human vitamins bad for dogs?

Yes. Humans and dogs have nutritional differences and requirements. Many ingredients found in human vitamins can be harmful to your dog.

Can I give human vitamin D to my dog?

No. Like zinc, vitamin D can cause serious side effects if not properly dosed for your dog’s needs.

Does my dog need vitamins?

It depends. Some dogs with health conditions, allergies, digestive issues, or vitamin deficiencies benefit from a daily vitamin. You should chat with your dog’s vet if you have concerns about your pup’s health to figure out the best plan of action.

Dog icon with leashCat chasing yarn ball - illustrated