The Many Benefits of Garlic for Your Dog

There is almost nothing this “wonder food” can’t do.


One dictum for dealing with an ailing dog is to make sure he doesn’t get sick in the first place. And one way to achieve that noble end is to feed him a maintenance dose of garlic, a “wonder herb” that has a long list of beneficial effects for the dog in your life.

Garlic has antiseptic, antibiotic, antifungal, and antimicrobial properties. It can be used as an anthelmintic (de-worming agent). It acts as a potent expectorant (helps bring phlegm or mucous up and out of the airway). It can lower blood pressure and prevent blood clots. And it can support the formation of good bacteria in the digestive tract.

For the latter reason, it is “absolutely brilliant” when given to dogs following treatment with conventional antibiotics, according to Hilary Self of Somerset, England, founder of Hilton Herbs, an international supplier of herbal supplements for horses and dogs. Self calls garlic the best-known and most widely used herb in the world.

In the U.S., garlic is commonly fed to dogs due to its reputation for repelling fleas and ticks. The sulfur in the garlic is excreted through the dog’s skin, keeping fleas at bay. This is clearly a benefit, according to Self. But it’s not garlic’s most valuable attribute. Given garlic’s many powerful applications, it might be difficult to say which one is.

Garlic’s gifts
Garlic, that is, Allium sativum, is a humble little plant and a member of the lily family. It grows all around the world, and it looks unimpressive, at least from on top of the soil. Underneath the ground, it develops a bulbous root, which breaks up into teardrop-shaped sections called cloves. The many benefits inherent in the roots become apparent after the plant is dug up and harvested.

People have eaten garlic to improve their health for centuries. Ancient Egyptians are said to have worshipped garlic (its virtues were described in inscriptions on the Cheops pyramid), and regularly fed it to their slaves to keep them strong and free of illness. Hippocrates (460 B.C.) is believed to have used garlic to treat uterine cancer. There are records of Chinese doctors using garlic as early as the sixth century (500 A.D.) More recently, Native Americans used garlic as a remedy for earaches, flatulence, and scurvy. The forefather of antibiotics, Louis Pasteur, studied garlic extensively and found it highly effective at killing bacteria.

Modern applications
Garlic’s magical properties have not escaped modern researchers. Recent studies have proven that garlic can lower blood cholesterol and blood pressure and raise the levels of anti-clotting factors in the blood. Other studies suggest that garlic can prevent and eliminate heavy-metal poisoning. Scientists have demonstrated that garlic can slow the growth of certain types of tumors. Garlic has even been shown effective in treating opportunistic infections in AIDS patients.

Humans, of course, have shared their good fortune in exploiting this powerful and beneficial herb with their animal companions. Dogs, in particular, seem to be able to benefit in many ways.

Perhaps garlic’s chief use lies in its ability to promote general wellness. While herbalists discourage feeding daily doses of garlic (or any other herb) year-round, in most applications, experts recommend feeding garlic three to five times a week for a period of a month or two, followed by a reduction or elimination of the dose. Careful observation needs to be maintained. If the sparkle goes out of the dog’s eye, just begin the garlic again.

How to feed garlic
The most important ingredient in garlic is a substance known as “allicin,” which is formed from a combination of two enzymes found separately inside garlic cloves. The first, “alliin,” is a nonvolatile, odorless sulfur amino acid. When a clove is cut (or chewed), alliin comes into contact with another enzyme called “alliinase.” Combined, the enzymes become allicin, a pungent, volatile sulfur compound that gives garlic its distinctive taste and smell.

Allicin is unstable; it converts into other compounds if it is not stabilized during manufacturing. Heat, in particular, drastically reduces allicin yield. Due to intense competition in the market, most companies that make garlic supplements for the medicinal benefits for humans monitor the amount of allicin in their products. Many state their stabilized and standardized allicin yield on their packaging. If you feed dried garlic, whether in a powdered or granulated form, the important thing is to get garlic that has not been heat-treated.

Fresh garlic is the least expensive option, and is the most potent form of the herb. But not everyone is willing to spend time chopping it up for their dogs to eat, and not all dogs will eat it, even if it is mixed into their food. You may have to experiment a little to determine which form is most palatable for your dog. The fussiest eaters may benefit from pure, cold-processed garlic oil, which several manufacturers produce in gelatinous capsules.

Begin with a low dose, introducing garlic in increasing amounts over a week or two until you are feeding the entire dose. According to Self, an average dose of garlic for large dogs should be about one fresh, crushed garlic clove per day. If you feed pure, cold-processed garlic powder or granules, the equivalent is about a half-teaspoon. The suggestion for medium-sized dogs is half a clove (or 1/4 teaspoon of powder); for small dogs, give just a quarter clove (or a pinch or two of the powder).

As with any drug or herb, it’s important to watch for any sensitivities particular in your dog’s body. Some herbalists say that a high daily dose of fresh garlic, given for long periods of time, can deplete the intestinal flora. If the condition you are treating is seasonal, or if the treatment is successful, slowly decrease the dose after the dog improves and maintains the improvement.

-by Nancy Kerns


  1. I’m absolutely shocked and saddened to read this. Please before anybody feeds garlic to their dog do more research and read this

    • That is a wonderful article and tells you to NOT feed garlic powder and gives you the correct amount to feed. Thank you. I always ‘err’ on the side of less. 15 to 30 grams per kilogram of body weight to be harmful…my dog is almost 30 kilograms. The average clove of garlic is 3 to 7 grams. I don’t give near this amount. I give a clove a day for 5 days…take a break for a day and then go to every other day. Also, I ONLY use fresh, organic garlic. Nothing with additives or pesticides.

  2. Garlic is toxic to dogs in all forms. Read it. Its the same family as Onion, parsley and leeks. Do NOT give your dog garlic ever

  3. Garlic is not toxic in small doses – this had been shown repeatedly. A medium sized dog would need to eat several bulbs to reach toxic levels. As with any supplement or medication the poison is in the dust.

  4. I have been giving my German shepherd garlic since he was one year old. He is now 6 and It hasn’t poisoned him. Best of all he has never had fleas!
    Marley is also on a raw diet. The vet always mentions how clean his teeth are. This is the raw bones in his diet.
    The natural way is the best way to go!

    • I’ve been feeding my dogs with garlic which I usually add in their food which I prepare for them everyday after cooking for our human family. It’s good for their stomach and skin.

  5. Garlic is great for dogs as recommended > I have been using it for years and it has helped and impacted my dogs in a positive way in their health!!!!!!

  6. I know I’m late to the party… I’d love to give my French Bulldog 1/2 tsp of garlic and am getting nowhere on French Bulldog specific sites… Does anyone here have experience with feeding fresh garlic to small dogs (25 lbs or less) or, better yet, French Bulldogs specifically? I’d like to be absolutely sure that garlic isn’t safe only for large dogs. Thanks in advance!

    • The written article says small dogs: 1/4 clove. I have a 12 lb Shih Tzu/ Bichon Frise and give her 1/8 tsp once a day.

    • I feed my little Coton de Tulear a little each day. He’s only 5.5 kg and he eats about a quarter of clove ( can’t be too exact) each day. He’s 3 years old and the picture of health! For anything to be toxic that humans eat I think they’ll need quite a bit to cause harm. He’s eaten grapes, onions and raisins and lots of stuff they tell us we shouldn’t feed them, mostly by accident however, and he’s very fit and well.

    • I feed my little Coton de Tulear a little each day. He’s only 5.5 kg and he eats about a quarter of clove ( can’t be too exact) each day. He’s 3 years old and the picture of health! For anything to be toxic that humans eat I think they’ll need quite a bit to cause harm. He’s eaten grapes, onions and raisins and lots of stuff they tell us we shouldn’t feed them, mostly by accident however, and he’s very fit and well.

  7. I just heard about this and bought my dog garlic gel capsules……it was 1000 mg caps…..just what the person told me this gives and now my big dog acts like he don’t feel good so idk I’m gonna give him any more…

  8. Here is the statement from the AKC -American Kennel Club
    For garlic to become toxic to a dog, it would have to consume 15 -30 grams per each 1 kg of weight. The average clove weighs 5 grams.
    A 16 lb dog would equal approx. 7.25 KG.
    This small dog would have to consume 3 – 6 cloves of garlic X 7.25
    If my math is correct, that would mean toxicity would be anywhere from 27 3/4 Cloves to 43 1/2 Cloves of raw garlic.
    Do you people believe in Vampires, too?

  9. Yes, a dog would have to eat lots of garlic to die from it. Some breeds are more tolerant. Just like some breeds are more susceptible. Intentionally feeding a dog a known toxic substance even at small doses, no thanks for my pooches.

    • 👍I am right there on it with you. All these herbal remedies is a hearsay. I have not read any scientific research on the benefits of garlic for dogs. I love my rescue boy too much, he survived distemper, and i would never take amy chances with his health.

    • I hope you don’t give your dog heartworm, flea or tick prevention or any medication ( i.e. antibiotic, pain meds) that is given by a vet to your dog because all that stuff is extremely toxic to your dog. Research the side effects of any drug. Did you know heartworm, flea, tick preventative are pesticides?

  10. It’s really frustrating to read so many inconsistencies but you are responsible for your own research and WHERE you get it from. My holistic vet of 40+ years insists fresh garlic is NOT, NOT, NOT toxic for dogs. My dogs have all had garlic (fresh, organic, non-irradiated) for their entire lives and thrived. No, I don’t chop up 20 cloves and give it to them, it is made with fresh food in small amounts or part of a supplement during cycles. Most average vets say otherwise, but these are the same vets saying kibble is good for teeth (good grief) and don’t feed dogs people food. Some people’s knowledge just is where it is, and you are not going to convince them otherwise. Yes, deep fried Oreos and Pepsi aren’t good for dogs but also not for people either. People do your own research NOT funded by dog food companies or anyone who can make a fat buck from you or your animal being sick. If you can’t be bothered to really look into this and come with an informed point of view, just go about your way and we all hope everyone’s doggies stay healthy as possible no matter what their owners know or do not know.

    • Hello there, i have a 5.2 yr.old aulstralian sheppard she is my world and then some, i am also totally into hollistic health but my dog has constant health issues and there’s just so much info out there i need some good advise asap weve had some financial issues and getting her to the vet has been impossible but before we take her back if you don’t mind i would love to message you 1 on 1 if you don’t mind giving me a little advise nothing major but i can tell your just the person i want to talk to about my dog Sheeba . I hope this message gets back to you i could really use some real advise thanks so much ,Regina

    • Amen it’s disgusting to read ingnorance, so the people that want to keep fleas off look at the ingredients you will see it is straight posion at a legal level. The same ingrediant used in pesticides is used in dog flea medicine

  11. Recently I started feeding my dog Stabilized Allicin capsules (2-180mg, 3x/day = 1,080 mg or just over 1gm) because he has MRSA from years of antibiotic abuse (prescribed by vet) that started as a chronic, reoccurring skin/staff infection. He is a 50 pound English Springer Spaniel. I believe in homeopathic medicine combined with modern medicine. Both have their place in wellness. I am desperate to help my dog be lesion free and healthy. I believe it starts with his immune system and gut health. I feed him home made milk Keifer and have had him on a raw diet for 3 years. It still isn’t enough. Currently we have cultured his new set of weeping wounds to see what he may be susceptible to (still waiting). Coupled with stabilized Allicin (garlic) capsules, my hope is that once the infection clears that it will stay cleared and NOT reoccur. The vet is not homeopathic but not against it either. I will plan on providing my dog with a break from the Allicin after he clears and then supply him with a maintenance dose every other day. Maybe I’ll start to grow my own garlic and feed him that in place of, on occasion. My dog is beloved because he is pure therapy for my family. We are praying for answers and solutions that work. We are desperate and willing to try/commit to this process. Please do not say “do not give your dog garlic”, at least to me. When you are backed into a corner with hardly any options you will try if the dog can tolerate it. So far he has done great for two weeks! No GI upset or signs/symptoms of pain/intolerance to the Allicin. Here is hoping! If you have helpful insight to my dilemma, please provide…. Thank you!

    • Have you tried Colloidal Silver??? It does wonders for nearly every ailment known to man & animal (especially infections & diseases that require toxic antibiotics). I’ve used the brand Sovereign Silver (from Sprouts’ Market or you can get it online) for yearsssssss because it’s every experts’ favorite & it’s been around for a century or more.

    • You can also try 1 tablespoon of pure honey 5-8 drops of lemon juice mix with 1/4 cup petroleum jelly for wounds.lemon is antiseptic honey is anti-inflammatory. As well my dog was allergic to the surgical tools broke out every needle she needed first wound got size of quarter so I tried this and 5 days almost completely healed works great for humans to.

    • I’ve heard Manuka honey on Mrsa infections as well as colloidal silver, as mentioned in another reply. Hope you are having success with your poor pup

  12. You do know that garlic is toxic to dogs!!!Please stop spreading misinformation. So are onions leeks and everything else in that family

  13. Small amounts of garlic over time can cause anaemia in dogs and my dog suffered from a severeve case of anemia and nearly died. Some may be fine but hell is it worth it? I think not why would you risk it the health benefits just aren’t worth it. DO NOT FEED YOUR DOG GARLIC

  14. Same people say Beneful dog food is killing pets. No, GRAIN FREE YES IS KILLING PETS. STAY AWAY FROM GRAIN FREE. Causes heart disease.

  15. I can’t believe those that say garlic is toxic for dogs, no it’s not. I’ve been giving garlic to my dogs for many things. It will hurt them if you don’t give them the right amount. People have to insult others because they just don’t know.

  16. My 14 Yeager old lab mix enjoys carrots broccoli Brussel sprouts cauliflower potato’s my Dads special concoction flavored with fresh garlic simmered in olive oil. i normally feed.Loki twice a day dry food topped with a milkbone to encourage his appetite. He gets the veggies as a treat. The garlic has never caused any problems. No one can believe he is actually 14. Everyone asks what I feed him. What’s my secret. At the dog park he outruns most of the dogs. Everything in moderation. That’s the take I get when reading various sources regarding garlic for dogs. It’s been my experience that it’s good for Loki. His coat is shiny. Teeth very good. Breath normal. I’ve read a number of articles that praise the benefits of garlic and yes for people and dogs. These are intelligent well written specific articles from those who know so much more than me. The only things you should never cut out are hugs and praise for our God given best friends. Kris

  17. Kris Thank you! And to every one who takes the time to get the facts right . Starting my dog soon to help fight Yeast of the body!

  18. This article is informative but then again it’s not. It still leaves you with questions on how much to give a certain pound dog. Not only that is not very specific on doses and does not mention warnings on too high of doses.

  19. Other articles say giving Garlic to a dog is lethal and poisonous so why are you saying to give it to them I don’t understand that one

  20. Just give it to the dog , it’s fine.
    I’ve been giving my dogs garlic for many years and have not had a problem. I crush it in a paste and mix it in , they love it. I do it for the health benefits and the side benefit is my last 4 dogs have never had fleas.

  21. I knew nothing about this topic, trying to research both sides due to chronic ear infections in a Cocker Spaniel — and after reading everyone’s comments….definitely still confused about garlic. I will add though, that my guess is most of the folks who are against a natural cure (even in a safer small amount, as basically everyone who suggested it has mentioned) would likely have no problem giving an outrageously-priced-unknown-chemical-composition in the form of a prescription medicine to their pets. Just sayin’.


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