Is Garlic Bad for Dogs?

is garlic bad for dogs?

Is garlic bad for dogs? When it comes to garlic, most dog owners are divided on their opinion.

Many people consider garlic to be a safe and healthy supplement for our dogs. That's why it's frequently added to many commercial dog foods and treats.

There are many health benefits to feeding garlic. Here are some things you might not know about this healthy herb:

  • Garlic is a natural antibiotic and won’t affect the good bacteria in the gut which are needed for digestion and immune health
  • Garlic is antifungal
  • Garlic is antiviral
  • Garlic boosts the immune system
  • Garlic makes dogs less desirable to fleas
  • Garlic is antiparasitic

However, some warn that garlic is toxic to dogs and should never be added to a dog's diet.

With so much at stake, it’s important to question both the positive and negative effects of garlic — before deciding whether or not to make it a staple in your dog’s daily menu.

The Case for Garlic

In the following video, Dr. Deva Khalsa, a holistic vet, presents the argument for garlic. And even though she’s obviously promoting her nutritional supplements, Dr. Khalsa makes a solid case for feeding controlled amounts of garlic to a dog.

Questionable Benefits

However, many pro-garlic claims have never been proven — and are only considered possible benefits for humans.

Take, for example, garlic’s most popular homeopathic claim that it naturally prevents fleas, worms and other parasites.

Despite the abundance of products that utilize garlic as a means to control fleas, research supporting its effectiveness is lacking.

Toxic in Large Doses

There are also specific health risks associated with garlic. That’s because like other species in the Allium family, onions and garlic contain aliphatic sulfides.

And when eaten by a dog, these same sulfides can produce telltale inclusions of denatured hemoglobin — the oxygen transport molecule — found within the animal’s red blood cells.

These so-called Heinz bodies can burst and decrease the numbers of red blood cells in the animal — a dangerous condition known as hemolytic anemia.

And in acute cases, garlic poisoning can lead to nausea, vomiting, diarrhea, elevated heart rate, weakness or even collapse.

That’s why garlic is considered toxic to dogs and cats by the…

Invisible Damage to Blood Cells

Fans of garlic would argue that it can take a significant amount of the ingredient to produce the kinds of clinical effects seen with this type of anemia.

And that’s true — at least for clinical signs. Keep in mind — these are the signs of disease that can be easily seen with the naked eye.

However, what about subclinical signs — the invisible damage seen only with the help of a microscope or lab tests?

In this video, Dr. John Tegzes, a veterinary toxicologist, warns about the damage that can be done to a dog’s red blood cells:

According to another vet toxicologist, Dr. Sharon Gwaltney-Brant, even in small amounts, garlic has demonstrated a proven ability to cause subclinical damage to a dog’s red blood cells.

And in a peer-reviewed article, Allium poisoning was found to not only follow the consumption of a single large amount of material but also after repeated smaller doses.

The Bottom Line

When used in larger doses, no one will argue that garlic and onions can be toxic to dogs. Yet one must also think about the potential health risks in feeding smaller amounts, too.

On the other hand, with many years of safe use behind it, garlic’s universal acceptance among pet lovers cannot be ignored.

So, be sure to consider the pros and the cons of feeding garlic on a daily basis when making your next dog food purchase.

For the original article with footnotes and information and research sources, visit Dog Food Advisor.

Source: Dog Food Advisor

Related post: 35 Healthiest Human Foods You Can Feed Your Dog (And The 12 That Could Kill Your Dog)

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23 thoughts on “Is Garlic Bad for Dogs?

  1. I share my cookouts and the girls get some garlic and all. I have never relied on garlic to keep fleas off because it didn’t work on my first Corgi I got 24 years ago. Finally Revolution came along and IV kept all my girls on it. Corgi’s are just to sweet for garlic to keep any fleas away. 🙂

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