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About spirulina for dogs

Do you have spirulina for dogs or do you know what is spirulina for dogs? Those two questions are the most common questions we get over email inquiries and during telephone conversations. For some time we didn’t know to tell if such spirulina, spirulina for dogs, is a product made in a specific formulation, requires extraction or blend or maybe it is the same spirulina.

In short, spirulina for humans is spirulina for dogs

After researching the subject, consulting professional sources and speaking to current and prospective customers, we now know to say that there is no special formulation that dogs require to consume spirulina. Fresh spirulina powder or freshly frozen are both excellent source of protein, B vitamins, and essential fatty acids. All you need to make sure is that it is coming from a clean source. (Meaning, tested for heavy metals and microbiology)

Studies testing the effectiveness and health benefits of Spirulina for dogs and on animals suggest that:

  • Strengthens the immune system and balances the microbiota
  • Improves gastrointestinal health
  • Helps to detoxify
  • Reduces the risk of cancer and
  • Can help with allergies

Spirulina helps improve the immune system of dogs and cats

When the immune system is stressed or suffering, it draws on the body’s metabolic energy. Dogs with an imbalance in the immune system often have chronic fatigue and a lack of energy.

Small amounts of Spirulina can help balance and stabilize it, releasing more metabolic energy and producing more vitality, health and use of nutrients.

In addition, it improves intercellular communication and can regenerate and repair DNA, which works as a kind of tuning.

Scientists around the world confirm that Spirulina improves the function of the immune system. This isn’t a surprise when eating healthy the body is automatically returning to its vital normal state.

And not only that, but it improves the body’s ability to produce new blood cells, as well as the cells of the immune system (marrow, macrophages, T cells and natural killer cells), which has greater activity.

Due to this power to boost immune activity, more and more animal feed producers are adding it to their formulations.

Spirulina can also improve gastrointestinal and digestive health. A beneficial flora is the foundation of good health, as it increases the absorption of nutrients and protects against infections.

Spirulina can act as a Natural Detoxifier and Cleanser

The reality is that our pets have never been more exposed to harmful chemicals both in the air and in water, food and medicine. Their bodies need to continually eliminate those toxins.

The fact is that Spirulina contains unique combinations of phytonutrients, including chlorophyll, phycocyanin and polysaccharides help to cleanse the body.

Spirulina can help in the prevention and treatment of cancer

Spirulina’s green-blue colour is more than just a pretty appearance, it is also a source of much of its anticancer preventive effect.

In “Healing with Whole Foods,” Paul Pitchford writes that “it is important to note that in the preventive area, spirulina contains the pigment blue phycocyanin, a Biliprotein that has been shown to help inhibit the formation of colon cancer .”

Spirulina and its extract have shown an anticancer effect in animal studies.

Its positive influence on the Natural Killer cells (T cells) helps control cancer cells, as well as polysaccharides, which can help restore tissues damaged by the effect of toxins or radiation.

At the University of Oregon, a study showed that the chlorophyll contained in Spirulina helps prevent skin, stomach, colon and liver cancer.

Spirulina can reduce allergies

Clinical studies point to the broad spectrum antiallergic effect that spirulina could provide.

A study published in 2008 demonstrated an immune-modulating effect in people who took Spirulina for 16 weeks.

Other studies conducted in a test tube on animal and human samples suggest that Spirulina can contribute even in cases of food allergies.

These results are very important precisely because allergic flare-ups are caused by exaggerated responses of the immune system to moderate exposures.

This explains why some dogs can react violently to certain pollens or certain foods and another, under the same circumstances, reacts normally.

Speaking to a long period customer of ours, David W., according to him, he has been giving his dog 20g of fresh spirulina. David wrote the following: “We were giving your Spirulina to our boy to help him with his chronic heart disease”. “Certainly no negative effects. We like to think it helped his health”.

In another conversation I have had with a prospective customer, the lady over the phone mentioned that her dog is having a hard time after a served chicken. To her knowledge, Spirulina powder will help with digestion. When I asked a little more about the condition, the lady over the phone mentioned “a problem with his eyesight”. 

During the telephone conversation, subjects such as hormones found in the chicken and amino acids, the building blocks of protein, came forward. I ended up explaining that spirulina provides a very clean and controlled diet. It is cultivated with food-grade nutrients only, within greenhouses so it is protected from the elements, on a rural organic certified land, including the water source and therefore no pesticides or herbicides are used or introduced.  

Furthermore, the protein is plant-based protein. It is a high-quality, ensuring clean diet and includes the essential ones, plus those that need to come from an external source.

Lastly, the welfare of the dog was discussed. The question I asked was straightforward. Is the well being of her pet and/or his quality of life was in question if she gave him chicken. To that, the lady over the phone said firmly ‘no’. With that final question, answer and information we said goodbye. Knowing the source of the spirulina, the possible presence of hormones in the chicken, the clean source of plant-based protein and knowing that her pet’s well being isn’t at risk, the lady decided to give the dog spirulina. 

Dr Lorelei Wakefield, an expert in the field of vegan pet nutrition, wellness and welfare, a veterinarian and long-time ethical vegan says, “Spirulina may be beneficial to dogs with allergic skin conditions, cancer, and heart disease.”

Dr Wakefield continues “…to be safe, do not give spirulina to dogs with a history of liver disease.”

“All dogs can benefit from a vegan diet. Thanks to ten thousand years of evolution alongside humankind, dogs are now physiologically omnivores. This means they can thrive on a nutritionally balanced plant-based food, such as v-dog.”
(Dr Wakefield appeared on Animal Planet and lectures about vegan dogs.)

How and how much Spirulina should I give my dog ​​or cat?

You will usually find it in powder form, although it is also available in capsules and other formats, including juices.

 According to Animal Essentials herbalist Greg Tilford, it is safe to consume every day but it is so dense in nutrients that it can lead to diarrhea if consumed too much. 

The daily recommendation for our pets is the following:

  • 1.25g (half a teaspoon) for small dogs mixed with food
  • 4-5g (one level teaspoon) for medium and large dogs mixed with food
  • 0.5g for cats mixed with food

What should I keep in mind when buying Spirulina?

 You must look for the purest product you can. Here are some common-sense tips:

  • If you can, buy organic spirulina – our spirulina grows on certified organic farmland. 
  • Ask about the analysis of the product, in particular, its pH (it should be above 10) and the presence of heavy metals – our spirulina is tested for microbiology and heavy metals by 3rd party laboratory under and following the Australian standard.

When should I avoid giving spirulina?

It is not advisable to include spirulina in the diet of dogs or cats when they are undergoing anticoagulant treatments or suffer from epilepsy.


If you are looking for a natural supplement that raises almost all the levels of your dog or cat, spirulina is the one. Spirulina is a plant and accessible superfood to give to your dog or cat every day or when they need it. 

Are you interested in adding Spirulina to your dog’s diet? At Fresh Spirulina we make it easy for you with the best price-quality.

You can view here prices and quantities for our Fresh Spirulina Pure Powder grown in Australia on certified organic farmland. 


The writer of this short article doesn’t own a dog. Among my family and friends, I am known to be more of a cat person and for years had both cats and aquariums but no dogs.

I am also not a vetrinerian. Please, consult your pet’s vet before making any decision. The information provided is for general information and purposes only. 

Do you have any questions? you can contact us either through the contact us form or at the number featuring at the top.

Delivery, terms and conditions can be found on the home page.


Puromenu, E., 2021. Espirulina para Perros y Gatos: un super alimento 100% natural. [online] Puromenu. Available at: <> [Accessed 24 June 2021].

WELLNESS, H., 2021. Spirulina for Dogs: Effect and Dosage Explained. [online] PetWarmPlace. Available at: <> [Accessed 24 June 2021].

V-dog. 2021. Dr Lorelei Wakefield. [online] Available at: <> [Accessed 24 June 2021].



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