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Spirulina is a fresh water blue-green algae that delivers one of the most complete nutrient profiles found in nature. Spirulina has been used by ancient cultures in South America and Africa for its dense nutrient content and healing properties.
It’s blue-green, absurdly healthy but often overlooked or misunderstood; Spirulina may not be from Pandora, but it grows in our version of that magical moon, Hawaii, along with other exotic locations around the globe.
This blue-green algae is a freshwater plant that is now one of the most researched, and alongside its cousin chlorella, most talked about superfoods today. Grown around the world from Mexico to Africa to even Hawaii, spirulina is renowned for its intense flavor and even more powerful nutrition profile!
Spirulina Throughout History
Believed to have been a staple for the Aztecs, recorded history dating to the Conquistadors confirms that spirulina cakes were regularly sold as far back as the 16th century. One of the most elaborate explanations we have from this time comes from Cortez in his book, “Conquest of Mexico.”
“They make it into cakes like bricks, which they sell, not only in the market (of Tenochtitlan) but carry it to others outside the city, and far off. They eat this as we eat cheese, and it has rather a salty taste, which is delicious with chilmolli (a pungent sauce). They say that so many birds come to the lake for this food, that often in winter some parts are covered with them.” (21)
Referred to as “Tecuitlatl,” spirulina was a primary source of protein for the Aztecs for several hundred years and Lake Texcoco remains an abundant fountainhead of this Superfood still today.
While you may have only seen it as an ingredient in your green superfood beverages, energy bars and natural supplements, spiralina benefits are so amazing that taken on a daily basis they could restore and revitalize your health! To date, there are nearly 1,200 peer-reviewed scientific articles evaluating its health benefits. (1)
Top 10 Proven Spirulina Benefits
Not everyone can get their hands on the Hawaiian variety, but fortunately spirulina that’s regularly produced also includes some pretty unbelievable health benefits for people who regularly consume it.
Affecting people all over the globe, chronic arsenic toxicity is a problem. According to the World Health Organization, the United States is one of the countries affected by inorganic arsenic that is naturally present at high levels.
Arsenic toxicity is an even bigger problem in the Far East. In the words of Bangladeshi researchers, “Millions of people in Bangladesh, India, Taiwan and Chile are consuming high concentration of arsenic through drinking water, and thousands of them have already developed chronic arsenic poisoning.” (2)
In fact, up to 3% of the entire nation of Bangladesh showed clinical signs of arsenic poisoning alone! (3) As Bangladeshi researchers pointed out, “there is no specific treatment” for arsenic poisoning, which is why they evaluated alternatives like blue-green algae.
After giving 24 patients affected by chronic arsenic poisoning spirulina extract (250 mg) plus zinc (2 mg) twice daily, they compared the results with 17 patients who took a placebo and found that the spirulina-zinc combination worked wonderfully. Ultimately, the participants experienced a 47% decrease of arsenic in their body!
According to researchers, “Candida species belong to the normal microbiota of an individual’s mucosal oral cavity, gastrointestinal tract and vagina.” (4) What does that mean?! Well, without a healthy microflora balance in our body, we are simply much more susceptible to sickness and disease.
In fact, leaky gut syndrome and improper digestion are directly connected to microfloral imbalance. Not only is invasive candidiasis the leading cause of mycosis-related death in the United States, candida overgrowth has become the hallmark sign for most autoimmune diseases today. (5)
Because of our shift toward a diet rich in sugar and unnatural ingredients, antimicrobial resistance and ineffective antifungal drugs, we have seen a significant rise in yeast infections since the 1980s.
Thankfully, spirulina can help. Several animal studies have shown that it’s an effective anti-microbial agent, particularly for candida. (6, 7, 8)
Specifically, spirulina benefits have been shown to promote the growth of healthy bacterial flora in the intestines, which in turn inhibits Candida from thriving. Additionally, the immune-strengthening properties of spirulina will help the body eliminate Candida cells. (9)
Up until recently, epidemiologists have been puzzled trying to understand why people in Japan, Korea and Chad have relatively low HIV/AIDS rates. One possible explanation, revealed in a 2012 study published in the Journal of Applied Phycology, may be the amount of algae people in these areas regularly consume!
When researchers took 11 HIV patients who have never taken antiretrovirals, they split the participants into three groups: one that was assigned to eat 5 g of brown seaweed every day, one that was to eat 5 g of spirulina, and one that ate a combination of both. (10) After the three-month trial period was complete, two key findings were discovered:
The results were so promising that one participant volunteered to continue the study for an additional 10 months, and this participant actually benefited from “clinically significant improvement in CD4 and decreased HIV viral load”!
According to the University of Maryland Medical Center, “A number of animal and test tube studies suggest that spirulina increases production of antibodies, infection-fighting proteins, and other cells that improve immunity and help ward off infection and chronic illnesses such as cancer.” (11)
This doesn’t come as a surprise as more than 70 peer-reviewed articles have been published in the scientific literature evaluating spirulina’s ability to effect cancer cells! (12)
In an article published this past April, Czech Republic scientists pointed out that, in addition to its ability to control blood cholesterol levels, “Spirulina is also rich in tetrapyrrolic compounds closely related to bilirubin molecule, a potent antioxidant and anti-proliferative agent.” (13)
When tested on human pancreatic cells, these researchers discovered that, “Compared to untreated cells, experimental therapeutics significantly decreased proliferation of human pancreatic cancer cell lines in vitro in a dose-dependent manner.” Essentially, this proves that consuming spirulina can help prevent developing various cancers!
Phycocyanin is a pigment found in the spirulina that scientists have discovered possesses antihypertensive effects (it lowers blood pressure). (14) Japanese researchers claim that this is because consuming the blue-green algae reverses endothelial dysfunction in metabolic syndrome.
I find this extremely promising for Americans because metabolic syndrome has rapidly become one of the main causes of preventable disease today, as it raises one’s risk of developing heart disease, diabetes and stroke. (15)
Along those same lines, spirulina benefits have also been shown to prevent atherosclerosis and reduce elevated blood cholesterol levels.
A recent animal study published in The Journal of Nutritional Science and Vitaminology took rabbits, fed them a high cholesterol diet (HCD) containing 0.5% cholesterol for four weeks, and then fed them a HCD with 1% or 5% spirulina for an additional eight weeks. (16)
After the eight-week trial was complete, LDL levels decreased by 26% in the group eating 1% of spirulina and 41% in the group eating 5% spirulina, which heavily suggests that the more we eat the more benefits we will receive! Serum triglycerides and total cholesterol were also significantly reduced.
In the study above, researchers also discovered that the spirulina supplementation lowered intimal aorta surface by 33% to 48%, which suggests that it can prevent atherosclerosis and subsequent stroke. (17)
It’s important to remember that this clinical trial was conducted on animals that were still eating a HCD, and it highlights that regular spirulina consumption can literally reverse the damage done by eating a poor diet. You can only imagine the heart health benefits that would be experienced in those individuals who have a balanced diet!
When you look at the chemical composition of spirulina, it’s no wonder that people who regularly consume it have an abundance of energy. Dr. Oz recommends combining 1 tsp spirulina powder with 12 oz lime juice and freezing the mixture in ice cube trays for a healthy boost.
According to Dr. Oz, spirulina and lime enhance energy performance because they unlock sugar from our cells and, when frozen, the cold from the ice boosts metabolic energy while giving our bodies a “wake-up call.” (18)
Diets high in nutrient-dense protein-rich foods like spirulina promote weight loss and low-fat stores through a variety of mechanisms. Because it takes more energy to metabolize, for example, eating protein helps maintain lean tissue and contributes to fat burning.
It can also curb hunger and overweight people seem to benefit the most. (19) To maximize this benefit, try eating your high protein spirulina in the morning or during midday instead of at night.
Known as allergic rhinitis, spirulina benefits the body by reducing the inflammation that causes people to experience sinus problems, according to numerous studies. (20) Compared to placebo trials, spirulina is effective at reducing itching, nasal discharge, nasal congestion and sneezing.
SunOrganics Pure Organic Spirulina naturally contains over 60% protein and is a great source of many important phytonutrients and mineral such as carotenoids, essential fatty acids, iron, magnesium, calcium and selenium.
SunOrganics from Australia and New Zealand takes pride in bringing you the best quality products and yours and your family’s health is our primary focus always.
As a dietary supplement, take three (3) tablets twice daily with water.
Wheat, gluten, soybeans, dairy, egg fish/shellfish, peanuts, or tree nuts, binders, preservatives, artificial flavours or synthetic colours.
Serving Size: 3 Tablets
Servings per Container: 60
Amount Per Serving
% Daily Value
Total Carbohydrate Less than 1 g
Organic Spirulina (Arthrospira platensis)
Gamma Linolenic Acid (GLA)
*Daily value not established.
If you have a medical condition or are taking medication, contact your health professional before use