Winter Diet Tips: 13 Supplements to Boost Your Dog's Immune System

Ever found yourself staring at rows of pet supplements, wondering which ones will make a difference?

You’re not alone.

Between all the options, from immune boosters to joint support to digestive health. it’s easy to feel overwhelmed by the choices. The good news?

When it comes to boosting your dog’s immune system, we’ve done the research for you!

Whether you're feeding your dog Volhard’s NDF2, Rescue, or AM Porridge & PM Crumble Diet, supplements are an excellent way to add extra wellness to their bowl.

From immune-boosting herbs to essential vitamins, we’ve rounded up 13 winter-specific supplements to keep your dog feeling just as excited, and healthy, every time they step out into that frosty air!

How Do Supplements Enhance Your Dog’s Natural Defenses?

Supplements play a huge role in enhancing your dog's natural defenses by providing essential nutrients. From antioxidants that protect against environmental stressors to probiotics that aid digestion, the right supplements can give your pup’s immune system the boost it needs to thrive.

A well-supported immune system helps your dog stay resilient to new environments, people, and other dogs, making it ideal for chilly evening walks or holiday season gatherings.

How to Choose the Right Supplements for Your Dog

The best approach is to focus on your dog’s unique needs, activity level, and lifestyle.

For instance, rescue and senior dogs may benefit from immune-boosting or joint-support supplements, while younger, high-energy dogs might need extra support for digestive health.

Tailor your choices to their lifestyle—probiotics are excellent for digestion, while supplements rich in Omega-3 fatty acids can keep their coat shiny and reduce shedding (good news for dog owners dealing with “dog hair everywhere” season!).

13 Supplements to Boost Your Dog's Immune System

Category 1: Immune-Supporting Herbs

Best for: dogs exposed to new environments, dog parks, daycare, holiday travel, or seasonal viruses

1. Echinacea Root

Echinacea is one of the most widely used herbs for seasonal immune support. Research shows it can help stimulate white blood cell activity, supporting the body’s natural defenses during winter. 

2. Cat’s Claw Bark

Cat’s Claw contains plant compounds traditionally used to support immune balance and overall wellness, especially during seasonal stress when the immune system can become compromised. It’s beneficial for dogs that need stronger winter immune defense. 

3. St. John’s Wort

St. John’s Wort is best known for nervous system support, but it also contains plant compounds that help maintain cellular health. Always consult a professional before use, as it may interact with certain medications. 

4. Licorice Root

In Traditional Chinese Medicine, licorice root is used as a harmonizing herb that supports the respiratory system and helps maintain a healthy inflammatory response. A gentle, supportive herb for colder months. 

5. Ginger Root

Ginger has long been used in natural remedies, from teas to elixirs, and it’s no surprise why. 

Ginger contains natural compounds such as gingerols that help maintain healthy inflammatory and immune responses. It’s widely used for digestion and seasonal resilience.

6. Elderberry

Elderberry syrup is a powerhouse immune booster for the entire family, including our pups!

Elderberry is rich in antioxidants and supports the body’s natural immune defenses. It may help maintain respiratory comfort during the colder months.

Category 2: Inflammation-Reducing, Antioxidant & Skin Support

Primary purpose: reduce inflammation, repair tissue, protect against oxidative stress, support skin during dry winter months

7. Calendula Flower

Calendula, known for its beautiful golden flowers, is rich in flavonoids—powerful plant-based antioxidants that protect cells from damage caused by free radicals.

This gentle herb is a popular choice among dog lovers seeking natural supplements for their pets, as its anti-inflammatory properties can support skin health, which is especially useful for breeds prone to sensitivities.

8. Oregon Grape Root

Oregon grape root contains berberine, a compound known for its powerful antimicrobial and anti-inflammatory effects, making it effective for treating various health concerns.

Oregon grape root contains berberine, a plant compound that helps maintain microbial balance and supports the body’s natural inflammatory response. Not safe for pregnant or lactating dogs.

9. Manuka Honey

Manuka honey stands out from traditional honey due to its unique antiviral, antifungal, and antibacterial properties. Its key active ingredient, methylglyoxal, is believed to drive these powerful effects.

Manuka honey also offers anti-inflammatory and antioxidant benefits, which can support immune function and overall wellness.

10. Bee Pollen

Bee pollen, often overshadowed by honey, is a nutrient-dense superfood packed with vitamins, minerals, protein, and healthy fats, making it a beneficial dietary addition for both humans and their canine companions.

Known for its impressive nutritional profile—35% protein and 50% carbohydrates—it’s a natural supplement loaded with essential elements like chromium, cobalt, niacin, and more.

For dog lovers seeking a comprehensive dog supplement, bee pollen supports overall wellness, from boosting energy to fortifying immunity.

11. Garlic

Garlic is a well-known immune booster, recognized for its ability to stimulate protective immune cells that can help safeguard against viral infections. Garlic enhances immune responses, making it a handy natural option for dog owners looking to support their furry friends’ health.

Garlic, when given in moderation, can be especially beneficial during the busy holiday season, when pups may be exposed to increased stressors.

Category 3: Adaptogens for Stress, Aging, & Immune Balance

Primary purpose: balance the stress response, strengthen winter resilience, support seniors or anxious dogs

12. Astragalus Root

Astragalus root is a multifaceted herb that helps essential organs and systems such as the spleen, liver, lungs, and circulatory system. It’s also known for its adaptogenic properties, helping reduce stress and supporting aging by protecting telomeres.

In addition to its immune-boosting effects, astragalus root can support overall vitality, making it an excellent choice for dogs with osteoarthritis, asthma, or nervous system concerns.

For dog parents seeking dog supplements that promote resilience and well-being, astragalus is a natural way to balance their fur baby’s health.

13. Ashwagandha

Ashwagandha is a powerhouse adaptogen that supports multiple body systems, including the endocrine, nervous, immune, and cardiovascular systems.

Known for its antioxidant properties, it protects cells from damage while improving metabolism and muscle strength.

Additionally, ashwagandha helps balance blood sugar levels and reduce inflammation, making it a valuable addition for dogs needing extra immune or anti-inflammatory support.

Frequently Asked Questions about Dog Immune System Supplements

1. Can Supplements Replace a Balanced Diet for Dogs?

While supplements can support your dog’s immune system, they are not a substitute for a balanced diet.

A complete, nutritious diet provides the essential vitamins, minerals, and other nutrients dogs need to maintain their overall health.

Think of supplements as tools to help fill specific gaps or to support particular health needs, such as joint function, digestion, or immune resilience. For tailored advice on your dog’s nutritional needs, consider consulting with our experts to ensure your dog receives well-rounded support without over-relying on supplements.

2. Are There Risks Associated with Giving Supplements to Dogs?

Over-supplementation can lead to nutrient imbalances or toxicities that could harm your dog’s health. Additionally, some supplements may interact with medications your dog is already taking, leading to unintended side effects.

Always choose high-quality, vet-recommended supplements to manage these risks and follow the recommended dosage.

Strengthen Your Dog’s Immune System with Volhard!

Give your furry friend the immune support they deserve. With Volhard’s expert guidance and premium supplements, you can build a strong foundation for your dog’s health—naturally and safely.

For more advice on dog nutrition, health, and training, contact us and check out our blogs!

Volhard Dog Nutrition and its expert canine nutrition coaches offer online consultations to help more dog parents discover why and how to feed their dogs the healthiest foods!

Speaking to a Volhard canine nutrition coach will help you understand the inseparable relationship between healthy food, a healthy body, and a healthy mind.

If you want to contact one of our Volhard canine nutrition coaches, don't hesitate to access our consultation page!

References

1. "8 Ways to Keep Your Dog's Immune System Strong This Winter." Pet Wellbeing, petwellbeing.com/blogs/news/8-ways-to-keep-your-dogs-immune-system-strong-this-winter. Accessed 22 Nov. 2024.
2. The Effect of Vitamin C Supplementation in Healthy Dogs on Antioxidative Capacity and Immune Parameters - HESTA - 2009 - Journal of Animal Physiology and Animal Nutrition - Wiley Online Library, onlinelibrary.wiley.com/doi/full/10.1111/j.1439-0396.2007.00774.x. Accessed 22 Nov. 2024.
3. "The Role of Vitamins in the Immune System of Cats and Dogs." Pet Food Supplement, petfoodsupplement.co.uk/project/the-role-of-vitamins-in-the-immune-system-of-cats-and-dogs/. Accessed 22 Nov. 2024.