10 Natural Antiviral Ingredients for Dogs

Kristina Voltin
Apr 8
6 min read

Looking for natural ways to support your dog’s health? These 10 antiviral ingredients can help boost your dog’s immune system, reduce inflammation, and promote overall wellness. While these remedies can complement traditional veterinary care, always consult your vet before introducing any new ingredient.

Quick Overview of Ingredients:

Turmeric: Contains curcumin to reduce inflammation and block viruses.
Olive Leaf Extract: Helps stop virus replication with oleuropein.
Garlic: Can be toxic in large amounts - use only under veterinary advice.
Echinacea: Supports immune health but lacks extensive research for dogs.
St. John’s Wort: May offer antiviral benefits; monitor for side effects.
Usnea: Known for its immune-boosting properties.
Ginger: Eases inflammation, nausea, and supports immunity.
Manuka Honey: Contains MGO to fight harmful microbes.
Cat’s Claw: Herbal remedy with potential immune benefits.
Elderberry: Packed with antioxidants to strengthen immunity.

Key Tips:

Start with small doses to monitor your dog’s reaction.
Avoid garlic and any ingredient that might interact with medications.
Always prioritize high-quality, vet-approved products.

These natural options can be part of a balanced approach to keeping your dog happy and healthy.

3 Natural antivirals safe and effective for dogs and cats

1. Turmeric

Turmeric, thanks to its active compound curcumin, can help protect your dog by blocking viral cell entry, reducing inflammation, and boosting immune defenses.

Proper Dosage

Use the table below to determine the right amount based on your dog's weight:

Dog Weight (lbs)	Daily Turmeric Dose (tsp)
Under 10	1/8 to 1/4
10-20	1/4 to 1/2
20-50	1/2 to 1
Over 50	1 to 2

How to Prepare Turmeric Paste

For better absorption, combine turmeric with a pinch of black pepper, a teaspoon of coconut or olive oil, and some warm water to create a paste. Store this mixture in an airtight container in the refrigerator, and it will stay fresh for up to two weeks.

Safety Tips

Start with small amounts to ensure your dog tolerates it well.
Watch for any digestive issues or allergic reactions.
Avoid turmeric if your dog has kidney stones or is on blood-thinning medications.

Simply mix the paste into your dog’s meals to make it easy to feed.

2. Olive Leaf Extract

Next up is olive leaf extract, a natural ingredient that supports your dog's immune system. The key component, , helps block virus replication and reinforces your dog's natural defenses.

3. Garlic

Before giving garlic to your dog, it's critical to consult a veterinarian. Garlic contains compounds from the Allium family that can harm red blood cells if consumed in large quantities.

Here are some key points to keep in mind:

Only use garlic in small amounts and strictly under veterinary guidance.
Avoid feeding your dog raw garlic, as it carries a higher risk of toxicity.
Watch for warning signs like lethargy, pale gums, rapid breathing, vomiting, or diarrhea. If you notice any of these, contact your vet immediately.

Because of its potential dangers and uncertain antiviral effects, garlic should only be introduced into your dog's diet with extreme caution and professional oversight.

4. Echinacea

Echinacea, also known as purple coneflower, is often used to support a dog’s immune system, potentially helping them fight off viruses. While much of the support for this herb comes from personal accounts rather than scientific studies, it’s still a common choice for promoting pet health. Always check with your veterinarian before introducing echinacea to your dog’s routine to make sure it’s a safe option for them.

5. St. John's Wort

St. John's Wort () is a plant with bright yellow flowers, historically used in herbal remedies. It contains compounds like hypericin and hyperforin, which may have antiviral properties. Stick to recommended forms and dosages to ensure safe use.

You can find it in several forms, including liquid tinctures, capsules (easy to mix with food), or tea (a milder option). Always consult your veterinarian before introducing it to your pet's routine.

Watch for any adverse effects, such as stomach upset or unusual behavior. If these occur, stop using it immediately and consult your veterinarian.

6. Usnea (Old Man's Beard)

Usnea, also known as Old Man's Beard, is a lichen that grows on trees and is easily recognized by its stringy, beard-like appearance. It contains usnic acid, which is known for its potential antiviral properties and support for the immune system.

You can find Usnea in various forms, such as tinctures, dried herbs, and capsules, making it easy to add to your dog's routine. Always talk to your veterinarian before introducing Usnea to your dog's diet, and use it as part of a balanced approach to their overall care.

7. Ginger

Ginger contains compounds like gingerols and shogaols that can help support your dog's immune health. These compounds are known for their anti-inflammatory and antioxidant properties, which can offer several health perks when used correctly.

Health Benefits for Dogs:

Helps reduce inflammation in the body
Eases digestive issues and nausea
Provides antioxidants to combat free radicals
Boosts immune health

Safe Ways to Add Ginger to Your Dog's Diet:

Grate fresh ginger root and mix it into their regular food
Brew a mild ginger tea by steeping it in warm water, then let it cool completely before serving
Sprinkle a small amount of ground ginger powder into homemade treats
Combine with plain, unsweetened yogurt for a flavorful and nutritious topping

When introducing ginger, start with small amounts and observe how your dog responds. To ensure safety:

Stick to fresh or dried ginger; avoid sweetened or candied versions
Keep fresh ginger refrigerated for freshness
Remove any fibrous pieces to prevent choking
Stop using ginger if you notice any digestive discomfort

Incorporating ginger into your dog's diet as part of a balanced nutrition plan can contribute to their overall health and wellness.

8. Manuka Honey

Manuka honey, sourced from New Zealand's Manuka trees, is known for its natural properties that may support your dog's health. This honey contains methylglyoxal (MGO) and produces hydrogen peroxide, which work to combat harmful microbes. It also contains enzymes and plant-based compounds that can help support the immune system.

While research on its direct effects in dogs is still developing, adding Manuka honey to your dog's diet in moderation could be a helpful addition. Always check with your veterinarian before introducing any new food or supplement to your pet's routine.

Up next: another ingredient to help support your dog's well-being.

9. Cat's Claw

Cat's Claw () is a vine long used in herbal remedies. While some believe it may support immune health and have antiviral properties, research specific to dogs is still scarce. Always check with your veterinarian to determine the right dosage before introducing Cat's Claw to your dog's diet.

You can find Cat's Claw in several forms, such as:

Liquid extracts: Easily added to food or water.
Capsules: Can be tucked into treats.
Powder: Mixed into wet food.

Since research is limited, start with small doses and watch for any negative reactions. Remember, herbal supplements should be part of a complete approach that includes a nutritious diet, regular exercise, and routine veterinary care.

Up next: Elderberry, the last natural antiviral ingredient.

10. Elderberry

Elderberry is packed with antioxidants and vitamins that support your dog's immune system. It also offers natural antiviral properties, helping to fight off infections effectively. This ingredient rounds out our list of natural antiviral options.

Conclusion

Incorporating natural antiviral ingredients into your dog's diet can help support their immune system when used in the right amounts. Since every dog is different, it's best to consult your veterinarian for advice on the most suitable ingredients, combinations, and doses.

When selecting natural supplements or foods with these ingredients, focus on quality. Choose products that meet AAFCO (Association of American Feed Control Officials) standards to ensure they provide balanced nutrition. For example, Loyal Saints' freeze-dried raw dog food is made with immune-supporting ingredients and undergoes strict quality checks with veterinary input.

Here are some tips to get started:

Begin with small amounts to observe how your dog reacts.
Stick to a consistent dosing schedule.
Keep an eye out for any negative reactions.
Track any changes in your dog's health and behavior.