Natural Protection for Your Dog: The Benefits of Garlic & Brewer’s Yeast for Fleas, Ticks, and Even Mosquitoes

Keeping your dog safe from fleas, ticks, and mosquitoes is essential for their health and comfort. While traditional chemical preventatives are common, many dog owners are turning toward natural solutions. One of the most popular and effective natural options? Garlic and brewer’s yeast.

Why Garlic and Brewer’s Yeast?

When combined in the right amounts, garlic and brewer’s yeast create an odor and taste that’s harmless to your dog but unappealing to biting insects.

Brewer’s Yeast

Vitamin Boost: Brewer’s yeast is packed with B-vitamins, which are excellent for your dog’s skin, coat, and overall health.

Natural Bug Deterrent: The unique scent and taste of brewer’s yeast make dogs less appealing to fleas and ticks when consumed regularly.

Immune Support: It may help strengthen the immune system and support healthy digestion.

Garlic (In the Right Amount)

Flea & Tick Repellent:Garlic produces compounds that circulate in your dog’s bloodstream, subtly repelling pests like fleas, ticks, and even mosquitoes.

Immune and Cardiovascular Benefits:Garlic has natural antioxidant and anti-inflammatory properties, supporting overall health.

Antimicrobial Support: Garlic can help maintain a balanced gut and support immune defenses.

But Isn’t Garlic Toxic for Dogs?

This is the biggest question dog owners have—and it’s a valid one. In very large amounts, garlic can be toxic to dogs. However, small, controlled doses have been used safely by holistic veterinarians for decades. The key is dosage and form (usually granulated or powdered).

For example, a safe range often recommended by holistic vets is:

Small dogs (under 20 lbs): 1/4 clove (or equivalent powdered form)

Medium dogs (20–50 lbs): 1/2 clove

Large dogs (50+ lbs): 3/4–1 clove

Always consult with your vet before adding garlic to your dog’s diet—especially if your dog has anemia, is pregnant, or is on medications.

How to Use Garlic & Brewer’s Yeast

You can find supplements that already combine brewer’s yeast and garlic in safe ratios. These often come in chewable tablet or powder form. Adding them to your dog’s daily meal helps create a natural layer of pest protection over time (usually a couple of weeks for full effect).

Extra Tips for Natural Pest Control

Regular grooming and brushing help catch fleas and ticks early.

Use natural sprays with ingredients like cedarwood or neem oil when hiking or during heavy pest seasons.

Keep your yard trimmed and clean to reduce pest habitats.

The Bottom Line

Garlic and brewer’s yeast aren’t magic bullets, but they’re a great addition to your dog’s wellness plan—especially if you’re looking for natural solutions. When used correctly, they can help deter fleas, ticks, and mosquitoes while also supporting your dog’s health from the inside out.