Can my dog have garlic?

March 05, 2025

Can my dog have garlic?

For the last several years, there has been a lot of discussion about dogs and garlic.  Garlic has long been celebrated for its health benefits in humans, but when it comes to dogs, the conversation is more complex.  While large amounts of garlic can be harmful to dogs, small amounts offer surprising health benefits.  Let's explore the debate surrounding garlic for dogs.  

The Risks of Garlic for Dogs

Garlic belongs to the Allium family, which also includes onions, chives, and leeks.  These plants contain a compound called thiosulfate, which is toxic to dogs in large amounts.  Thiosulfate can cause oxidative damage to red blood cells, leading to hemolytic anemia.

Studies suggest that harmful effects occur when dogs consume large amounts of garlic.  For example, it may take 15 to 30 grams of garlic per kilogram of a dog's body weight to cause toxicity.  To put this in perspective, a single clove of garlic typically weighs about 3 grams.  A 6-pound Chihuahua would need to eat 40-80 grams of garlic or 8-16 whole cloves of garlic to be at risk for serious toxicosis.

Garlic in Small Doses: A Different Story

Garlic in small, controlled doses has been used for centuries to support canine health.  Many pet supplements include small amounts of garlic as an ingredient, citing its benefits for the immune and digestive systems.  In appropriate amounts, garlic may:

  • Improve circulation by preventing blood clots and widening blood vessels.
  • Reduce cholesterol levels.
  • Strengthen the immune system through its antibiotic, antifungal, and antiparasitic properties.
  • Help prevent fleas and ticks.
  • Stimulate the lymphatic system to release toxins.

The notion that any garlic is harmful to dogs gained traction in 2000, following a study where dogs were fed excessive amounts of garlic over a short period.  Four dogs were given 75 cloves of garlic daily - an amount that would be overwhelming for any animal.  This extreme dosage skewed perceptions and overshadowed the potential benefits of garlic in moderation.

A later study from 2018 look at the effects of smaller amounts of garlic over a longer period of time - 90 mg per kilo per day over 12 weeks.  The study found that long-term effects of garlic in a smaller dose did not show any adverse effects in dogs.  Furthermore, the study concluded that it "might safely contribute to the health of dogs provided that the appropriate dosage is used."

Why Garlic and Other All Natural Ingredients Shine in Diabetic Dog Treats

For dogs with diabetes, a carefully curated diet can make a significant difference in managing their condition.  This is where organic garlic and other natural ingredients come into play, particularly in our Old Dog Diabetic Cookies. 

Our diabetic dog treats are crafted with care.  Each ingredient has a specific purpose and benefit:

  • Garlic: In small amounts, garlic helps lower blood sugar and stimulates digestive function, contributing to overall health.
  • Alfalfa: Known for it's anti-inflammatory properties, alfalfa is rich in minerals that support the growth and regeneration of bone and connective tissue.
  • Pure (Unsweetened) ApplesauceApple pectin helps regulate blood sugar levels and boosts the immune system, making it an excellent choice for diabetic dogs.
  • Dandelion Root: This ingredient is celebrated for it's ability to reduce blood sugar levels naturally.
  • Kelp: Aids in maintaining healthy pigmentation, skin, and coat while promoting proper thyroid function.
  • Pumpkin: A rich source of Vitamin A, pumpkin supports vision and immune health.

Our Diabetic Dog Treats are designed with a holistic approach, combining these ingredients to create a low calorie treat that is not only safe but beneficial for diabetic dogs.  By including a small amount of garlic, these cookies leverage its health-boosting properties without risking toxicity.

Everyone who works at the Old Dog Cookie Company is a dog owner and cares deeply about the health and nutrition of our dogs. For 30 years, we have given these treats to our dogs-starting with Jetty, our diabetic Lab who inspired the company.  Today, Rosie, Lola, and Moxie and their many friends, all enjoy these treats.

A Balanced Approach

The benefits of garlic in small amounts are worth considering for healthy, non-allergic pets.  As always, consult your veterinarian before introducing any new supplement or food into your dog's diet.  With the right approach, garlic can be a natural and effective way to support your diabetic dog's overall well-being.





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