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Benefits Of Spirulina For Dogs

spirulina dogsSpirulina is a microscopic algae in the shape of a perfect spiral coil. It contains the most remarkable concentration of nutrients known in any food, plant, grain or herb. Its the highest protein food- over 60% all digestible vegetable protein. It has the highest concentration of beta carotene, vitamin B-12, iron and trace minerals and the rare essential fatty acid GLA. (gamma-linolenic acid)

Spirulina Nutrition

Spirulina contains a number of unique phytonutrients like phycocyanin, polysaccharides and sulfolipids that enhance the immune system, possibly reducing the risk of infection, cancer and autoimmune disease. It is rich in natural carotenoid antioxidants that promote cellular health and reduce the risk of cancer. It has cleansing chlorophyll which helps detoxify our bodies of ever present pollution.

Spirulina Benefits

Both test-tube studies and animal-based research suggest that spirulina may help to:

  • Strengthen the immune system
  • Improve gastrointestinal health
  • Aid in detoxification
  • Reduce the rate of cancer
  • Help allergies

Spirulina Can Strengthen The Immune System

When the immune system is stressed or suffering, it draws on the body’s metabolic energy. Dogs with immune system imbalance often feel chronic fatigue and low energy. Small amounts of spirulina can help balance and stabilize the immune system, freeing up more metabolic energy for vitality, healing and assimilation of nutrients. It enhances the body’s cellular communication process and its ability to read and repair DNA, like a kind of cellular tune up. Scientists around the world – in Japan, China, India, Europe, Russia and the USA – are discovering how and why spirulina is so effective for human and animal health. Hundreds of published scientific studies reveal how spirulina and its unique phytonutrients boost the immune system and improve health.

Studies confirm spirulina improves immune system function. Medical scientists discovered it not only stimulates the immune system, it actually enhances the body’s ability to generate new blood cells. Important parts of the immune system – bone marrow stem cells, macrophages, T-cells and natural killer cells, spleen and thymus glands – all show enhanced activity. Scientists observe it causes macrophages to increase in number, become activated and more effective at killing germs. Because spirulina increases disease resistance in animals, even in very small doses, the animal feed industry is studying its use as a new probiotic to help replace overused antibiotic drugs in animal feeds.

Spirulina Can Improve Gastrointestinal And Digestive Health


Research confirms spirulina promotes digestion and bowel function. It suppresses bad bacteria like e-coli and Candida yeast and stimulates beneficial flora like lactobacillus and bifidobacteria. Healthy flora is the foundation of good health and it increases absorption of nutrients from the foods we eat, and helps protect against infection.

Spirulina Can Enhance Detoxification and Natural Cleansing

Researchers in Japan found spirulina significantly reduced kidney toxicity caused by the heavy metal mercury and three pharmaceutical drugs. Other researchers found rats consuming spirulina or chlorella algae eliminated seven times the dangerous chemical dioxin compared to a control diet.

In 1994, a Russian Patent was awarded for spirulina as a medical food to reduce allergic reactions from radiation sickness. 270 Children of Chernobyl consuming 5 grams a day for 45 days (donated by Earthrise Farms), lowered radionucleides by 50%, and normalized allergic sensitivities. Today our dogs are subjected to an onslaught of toxic chemicals in our air, water, food and drugs. Their bodies need to continually eliminate these accumulated toxins. Spirulina has a completely unique combination of phytonutrients – including chlorophyll, phycocyanin and polysaccharides, that can help cleanse the body.

Spirulina Can Prevent and Treat Cancer

Spirulina’s blue-green color is more than a pretty facade; it is also the source of much of its cancer-prevention abilities. In Healing with Whole Foods, Paul Pitchford writes, “Important to note in the area of prevention, spirulina is richly supplied with the blue pigment phycocyanin, a biliprotein which has been shown to inhibit cancer-colony formation.”

Spirulina and its extracts have been shown to have anticancer activity in animal studies. Spirulina stimulates natural killer cells and similar anti-immune components of the immune system that can help fight cancer cells. Laboratory studies also show that spirulina polysaccharides can work to repair genetic material that has been damaged from toxins or from radiation.

An Oregon State University study in which laboratory animals were exposed to a potent cancer-causing substance found that animals given a chlorophyll supplement prior to exposure developed far fewer tumors than animals who were not given the supplement. The researchers believe that chlorophyll may reduce the risk of developing skin, stomach, colon, and liver cancers. Take a chlorophyll or sea-greens supplement, such as spirulina and blue-green algae, as directed on the product label.

Spirulina Can Reduce Allergies

Clinical research points to broad basis for the anti-allergic activity of this functional food. A trial published in August 2008 demonstrated an immune-modulating effect in people who were administered spirulina for 16 weeks. Significant reductions in IL-6 (interleukin-6) were noted, which suggests a balancing effect on “immune variables”. Other experiments performed in “test tubes”, animals and humans support these prior findings and suggest that the effect of spirulina may even afford protection to those with food allergies. These test results are important because allergic reactions are partially brought about by inappropriate responses by the immune system. That explains why one dog can be severely reactive to a certain flower pollen or a common food and another in the same circumstance feels completely fine.

Spirulina Powder

Spirulina is often sold in powder form, but it’s also available in capsules and other natural products (including juices).  Try giving your dog spirulina and you will notice a shinier, more lustrous coat, fresher breath and better overall physical condition.


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37 Responses to Benefits Of Spirulina For Dogs

  1. Stanford LYNX December 17, 2013 at 2:38 AM #

    Several years ago I put a basic web-site together for a couple that wanted to sell a “Blue-Green Algae” people were saying many good things about it, with testimonials of their positive experiences.

    My question is: does this “Blue-green” algae sound like it is the same or similar to this “spirulina”? I live on the north-coast of Oregon, USA and I think that the “Blue-Green Algae” was from Klamath Lake, Oregon. I would love to hear from you and the readers of this; for any pertinent discussions/answers comparing the two product descriptive names.

    I have a 6¾ year old 70 pound “Pit-bull” named Rio; that is my very much loved ADA Assistance Animal (Service-Dog). She has many very helpful skills eg; Hearing-Ear Dog, she pulls my wheelchair or mountain bike for miles — perfectly responding to vocal commands/directions. They let her stay with me in the Er or when I check into a hospital room for an operation that keeps me there for 7-8 days.

    I find myself being afraid of most manufactured pet foods; so now that I have lost my wife, I prepare our meals together much of the time. I use chicken tenderloins, Salmon brown Basmati rice, oats, barley, whole wheat, olive oil, fish oil, lots of vegetables, et cetera.

    It seems like this spirulina would be the sort of supplement that I have been watching for; but do you think it is like the B.G. algae, or is it a different product entirely?

    Stanford & Rio

    • Dogs Naturally Magazine December 17, 2013 at 6:15 AM #

      The aquatic vegetation is similar yet different. There is algae, there is spirulina, there is kelp, bladderwrack, and they all carry different qualities and nutritional profiles.

  2. Erika November 12, 2013 at 1:12 PM #

    I have been following this thread, and was wondering, for 500 mg. spirulina tablets, the dosage says to give (to humans) 6 tablets daily with food. Assuming they mean a 120-160 lb. human, would I just cut that dosage in half (ground into powder) for a 75 lb. lab, or 1/3 for a 45 lb. lab? I didn’t want to give her too much.

  3. Kim November 1, 2013 at 10:54 AM #

    Hi there, after reading your article on Spirulina, I’ve decided to try it for myself as well as my dog!
    I’ve been researching abit as I seem to be limited in my area to what I can get.
    Would you say the powder or capsules are better to give to my dog? and do you have any insight as to which brand is better or where it comes from, Hawaii or China?

    Many thanks!

  4. Dominika October 16, 2013 at 6:18 PM #

    Hi, I was just reading your article and I’m thinking to start giving my dogs this wonderful antioxidant.What would be advice dose to take for the weight 50kg Akita Inu? Thank you

  5. Lupe September 24, 2013 at 5:36 PM #

    I also have trader how’s 500 mg spirulina tablets, I’m wondering if I would be able to feed these to my pups? I have a 12 lbs Yorkie and a 43 lbs frenchie. Neither are overweight, they are just large for their breed.FYI.

    • Dogs Naturally Magazine September 25, 2013 at 7:41 AM #

      You might have to grind the pills up to make sure they’re not getting too much.

    • virginia strickland September 26, 2013 at 4:44 PM #

      I gave this to my two dogs this morning (Beavis and Butthead) and they loved it. I have been taking it for about a week and a severe skin allergy (nodules maybe a inch big) have disappeared. Will keep you posted. We are taking Pharmaceutical grade pure spirulina.

  6. Deb Hoff April 8, 2013 at 12:48 PM #

    I was recently told that you should not use products containing Spirulina if you have your dog on a high protein food (Orijen, for example), as it is detrimental to their kidneys. Thoughts?

    • Dogs Naturally Magazine April 8, 2013 at 6:15 PM #

      The studies showing that high protein consumption placed stress on the kidneys was performed on rabbits who are herbivores! The information was then wrongly extrapolated for dogs. High protein content is much more suitable and desirable for carnivores and, as long as the protein quality is high (for example, meat), then dogs have no issues with a high protein diet and adding spirulina shouldn’t be an issue.

  7. regina tibbs March 19, 2013 at 1:39 PM #

    Hi, my collie is 12 and has just been diagonosed with a huge liver tumor, she is gastly thin and lost a lot of weight. I am basicly told that I am loosing her and that all I can do is feed her high protein and extend her life . Can this spirulina reverse her tumor or aid in extension of life………since collies are so so sensitive to most everything and much meds are contraindicated.. Please rsvp asap. Thanks ever so much. Also I have just been diagonsed with extreme scholisos and am in my early 60′s. I am under chiropractic care but ani infamitory is needed for the nerves and pain. Would this help? Thanks…………..Gina

    • Dogs Naturally Magazine March 20, 2013 at 8:17 AM #

      I’m sorry to hear about your dog. Liver cancer is very aggressive unfortunately. You could try AWGE or look into Neoplasene.

    • Isabel May 7, 2013 at 9:06 PM #

      Hi there, very sorry to hear about you and your dog. Just wanted to shine the light on several healing options. I’ve been giving my 9 yr old German Shepard spirulina daily as part of her natural foods cooked food diet, I prepare for her daily. Se thrives on it!! And really looks forward to eating. Her coat is gorgeous, thick and very shiny!! Her energy is super high! I have never seen a bad side effect from it. I suggest 1 tablespoon a day. I am a holistic health coach, I take spirulina daily:) it’s natures most perfect food for you and your dog. Also incorporate as much raw extra Virgin cold pressed coconut oil into you and your dogs lifestyle..it’s anti viral and anti bacterial..natures anti biotic:)) along with many other health benefits..it is a medium chain fatty acid. So you’ll actually loose weight from taking it. I suggest you start making super food meals for you and your dog..start a daily juicing regimen..the body has an internal healing mechanism and wants to heal!! You just have to put the right fuels in to help it along the way:)

      • Aubrey September 26, 2013 at 6:18 PM #

        I use the tablets. How many would I give my Australian shepherd who weighs 75lbs?

  8. Debbie February 28, 2013 at 2:13 PM #

    My maltese got pancriatitis, she has lost a lot of weight even though she has been treated by vet. They say she has to be on a light diet for the rest of her life, but would spirulina be safe for her to take? and help her

  9. Audra January 22, 2013 at 12:40 AM #

    I put spirulina powder in my dog’s water and she loves it! It is good for her because she has allergies and sneezes a lot .

  10. Renee January 15, 2013 at 2:55 PM #

    I’ve been giving all my animals, including my 3 dogs spirulina for about a year now. My 9 year old chihuahua/mix has really perked up since using it and seems to have more energy. I also give probiotics with it (once a day everyday) which is good for overall health, but helps the spirulina to be digested better.

  11. victor kinnick December 23, 2012 at 9:38 AM #

    My dog is fighting distemper and we are using spirulina to combat it. If u have more info we could use it

  12. sue December 16, 2012 at 2:52 AM #

    I have a beagle….she is 15.5 kilos in weight. How much spirulina would you recommend? She is on Thyroid medication, and has started eating DIRT, I have to muzzle her when she goes outdoors. I have been to the vet, not much help with the problem. I am wondering if she is lacking something in her diet. Thanks Sue

  13. Angela October 19, 2012 at 12:34 PM #

    We have several Beagles. They are on a raw diet of human grade ground chicken backs & turkey necks and alternate to raw beef or pork on occasion. They enjoy fruits such as watermelon, banana and blueberries and love them frozen in an ice cube. Celery too! We are adding Spirulina to their good, but I wonder if it would be okay to put 1/4 tsp. per dog in their nightly portion. It is not a pound of food, but I know that a pound of raw is not the same as a pound of dry kibble. Please advise if this is an over-dose or if this dosing would be appropriate. My dogs are an average of 20 lbs each, with my large male at approximately 30 lbs. Thank you.

  14. Deb August 4, 2012 at 8:52 AM #

    Could any one tell me the dosing of spirulina for a dog if it’s a human grade tablet. I have Trader Joe’s Organic Spirulina daily supplement that I take myself….500mg. Human use recommendation is 3 tablets daily. What would I give my dog (s) ?…..all different weights, the largest weighing about 70 lbs. Also, I’ve read that Bromelain and Quercetin are excellent natural supplements for dogs with allergies, but I can’t seem to find any information on appropriate dosing for dogs……any help or info would be appreciated!

  15. Krystle Stewart August 3, 2012 at 4:26 PM #

    I like to make my own food patties for my dog, fresh veggies, raw meat, fruits, etc the patties don’t get cooked, but I’m wondering if it would be appropriate to add some spirulina powder to the patties or would freezing the patties damage the benefits of the powder?

  16. Spirulina Benefits Health July 9, 2012 at 3:13 PM #

    Great article about spirulina and it is good to see that also pet owners are aware of the many health benefits of spirulina. We have even seen the testimonials to the benefits of spirulina on horses and it goes to show that natural nutrition is always best. Spirulina also have an effect on the immune system and together with beta glucan, which is the best proven natural immune enhancer for use in humans and animals, pet owners can give their pets a complete protection against infections and age related symptoms.

  17. vicki June 18, 2012 at 7:47 PM #

    hi…thanks for the advice but would just like to know 1/4 teaspoon for what weight/breed dog…i have a 15 yr old west highland terrier…she isnt ill, just want her to enjoy a few more years!!!! thanks :)

  18. lynn May 6, 2012 at 1:38 PM #

    my little chihuahua has IMHA and is taking predisone,azathoiprine, anacid blocker, doxy, pet tinic. is it safe to use spirulina with all the meds?she had to have a whole blood transfusion. very bad disease caused from yearly shots.

  19. Kimberly October 6, 2011 at 1:31 PM #

    I would like to start giving my dog Spirulina for atopic allergies. I saw in an earlier post the appropriate dosage is noted as 1/4 teaspoon per lb of food daily. She is currently on a short term predinzone treatment and the vet discussed Atopia (Cyclosponine) for future use. Are there any concerns about starting the Spirulina while she is finishing the prednisone and should I even consider the use of Atopia?

    • Dogs Naturally October 7, 2011 at 10:25 AM #

      PERSONALLY, I would never consider the use of Atopica (nor Prednisone). A good, classical homeopath can sort this out without the immune assault of these drugs. I’m not convinced spirulina will have that much of an affect on a dog needing this type of intervention. The best advice I can likely give you is go see a homeopath! (Or a good TCM practitioner). Otherwise, these drugs just suppress the symptoms and drive the illness in deeper and will always come back in some form or another. Best of luck.

  20. lacy October 4, 2011 at 12:31 AM #

    I have been taking spirulina for a year now and love it. I just picked up a stray pup that is in severe malnutrition. She is hide over bone. I read that spirulina has been given to starving children in third world countries to help them gain weight. Is it true that it will help? I also believe in taking diatomaciouse earth. Should I take spirulina at a different time than the d.e. since d.e. bonds to things and takes it out of your system. Will the d.e. counteract the spirulina?

  21. kerri August 2, 2011 at 6:02 PM #

    my dog is taking doxycycline for heartworm, can i give her spirulina during this period or will it combat the effects of the antibiotic? i dont use any drugs and dont want to give them to my dog either, however she does have a serious case of hearworm so i am willing to give her hearworm treatment then go totally natural.

  22. Lynne Parker June 16, 2011 at 12:01 PM #

    Thanks so much!

  23. Dogs Naturally June 15, 2011 at 9:02 AM #

    The daily dose is 1/4 teaspoon per pound of food.

  24. Lynne Parker June 15, 2011 at 8:50 AM #

    I’m set to order some spirulina powder from Mountain Rose Herbs. I trust them. My only question is how much per dog’s body weight does one give?


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