The Top 10 Spirulina Powders for Daily Nutritional Boosting

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If you’re seeking to refresh your superfood list, make sure spirulina is towards the top of the list! This blue-green algae is filled with nutrients that may support a variety of diets and lifestyles, and it may even help enhance your heart health and increase your immunity!

In this study, we look at 10 of the finest spirulina powders for a superfood boost in your diet. We also examine its nutritional composition and how spirulina may aid in the promotion of improved heart health, as well as its potential function as a metabolism booster. We also go through some of the potential negative effects of spirulina and why it’s critical to make sure any spirulina powder or supplement you purchase has been tested for heavy metals and toxins.

Best Selection

The Nutrex Hawaii 100% Hawaiian spirulina is our favorite batch tested spirulina powder since it is organic and non-GMO.

Budget Selection

Our affordable selection of quality and safety verified spirulina powders is the NOW certified organic spirulina powder.


Quick Comparison: Top 10 Best Spirulina Powders

Product Name Grade
Nutrex Hawaii Pure Hawaiian Spirulina Powder A
NOW Certified Organic Spirulina Powder A-
Zhou Nutrition Non-GMO Spirulina Powder B+
Micro Ingredients Pure Organic Spirulina Powder B-
BulkSupplements Spirulina Powder B+
Sari Foods Co Organic Spirulina Powder A-
Soul Organics Spirulina Powder A-
BN Labs Spirulina Powder Organic B
Earthrise Spirulina Natural Powder A
Vimergy USA Grown Spirulina A

1. ​Nutrex Hawaii Pure Hawaiian Spirulina Powder  

Highlighted Characteristics

  • Organic and non-GMO pure spirulina powder in a 16 oz jar
  • There are no other components. This powder is kosher as well as halal.
  • Heavy metals and microbials are examined in each batch.
  • Manufactured in Hawaii by a third-party GMP manufacturer.
  • One teaspoon may be consumed three times per day.

The Nutrex Hawaii pure Hawaiian spirulina is certified vegan and gluten free, as well as organic and Non-GMO Project Verified. This spirulina is also kosher, halal, devoid of preservatives, and free of soy. This spirulina is evaluated for purity and safety in every batch, including heavy metal and microbiological tests. This farm-to-bottle product is grown in Kona, Hawaii, and is produced by a third-party certified GMP (Good Manufacturing Practices) business.

One teaspoon of this powder, which comes in a 16 ounce container, should be taken daily with or between meals. Like with any supplement, there is the possibility of negative effects, and some people have reported that the stench may be overpowering, causing them to take less than they should.


  • Spirulina from the Hawaiian Islands
  • Organic
  • Tested
  • Kosher
  • Halal


  • Supplementing with spirulina powder may cause adverse effects.
  • The odor may be rather intense.

2. NOW Certified Organic Spirulina Powder 

Highlighted Characteristics

  • 1 pound container of pure spirulina powder that is certified USDA organic and GMO-free.
  • Kosher and halal diets are supported.
  • Manufacturer follows FDA and other production regulations.
  • This powder has been tested for quality and safety, as well as for pollutants and heavy metals.

Adherence to FDA Current Good Manufacturing Practices (CGMP) and other production regulations ensures the quality of the NOW certified organic spirulina powder. Product testing for quality and safety, including heavy metals and pollutants, is one of them.

This USDA organic spirulina powder is also non-GMO, kosher, and halal. Some of the most recent batches of this pure powder have arrived with defective seals, and although this powder should be 1 pound net weight, some have found it to be much less, even after weighing the plastic jar.


  • Organic
  • Tested
  • Non-GMO
  • Kosher
  • Halal


  • May weigh less than one pound.
  • There is a chance that the seals may be damaged.

3. Zhou Nutrition Non-GMO Spirulina Powder

Highlighted Characteristics

  • Californian spirulina is available in a 6 ounce container.
  • This is collected using a closed-loop production technique that does not pollute the environment.
  • GMP-compliant processing at an FDA-certified facility
  • Free of herbicides and pesticides, and quality and safety tested

This non-irradiated and pure Zhou spirulina comes in a 6 oz jar and is harvested in southern California using a closed-loop production technology that recycles without polluting the environment. This spirulina was manufactured in an FDA-approved facility using good manufacturing procedures (GMP), and everything was checked for quality and safety; nevertheless, some customers attempted to get certificates of analysis to corroborate test findings and were unable to do so.

Our non-GMO spirulina powder is also pesticide and herbicide free. Several people have gotten this powder with damage to the inner seal, which increases the danger of the powder leaking during delivery.


  • Spirulina from America
  • Tested
  • Free of pesticides and herbicides
  • Non-GMO


  • There is a chance that the powder could leak during transportation.
  • Its inner seal may potentially be compromised.
  • Certificates of analysis may be unavailable.

4. Micro Ingredients Pure Organic Spirulina Powder 

Highlighted Characteristics

  • A resealable 1 pound bag of pure spirulina powder with a scoop
  • It is USDA organic and non-GMO.
  • Taiwanese origin

The pure Microingredients organic spirulina 1 pound bag is USDA certified organic and contains no GMO components. This non-irradiated powder is presently obtained from Taiwan, and some consumers have reported that it has an unusually strong odor and flavor.

This powder is also available in a resealable bag with a scoop, although extracting the powder from this form of container may be more difficult. There is presently no information on what this product has been tested for, however some past purchasers have had access to test results.


  • Spirulina powder in its purest form
  • Organic
  • Non-GMO
  • Reusable bag with scoop


  • When compared to other spirulina powders, this may have a greater odor and flavor.
  • Scooping powder from the resealable pack might be challenging.
  • There is a scarcity of information on current safety and quality test findings.

5. BulkSupplements Spirulina Powder 

Highlighted Characteristics

  • 8.8 ounce spirulina powder pack
  • Heavy metal pollutants were tested
  • The batch certificate of analysis is available on the manufacturer’s website.

This 8.8 oz bag of BulkSupplements spirulina powder is a pure powder manufactured in China that has been tested for heavy metal contamination, and the certificate of analysis is accessible to prior purchasers. It currently seems to be derived from California, although whether it is harvested there or just packed there remains unknown. Customers may, however, seek the certificate of analysis for their batch through the manufacturer’s website. This powder comes in a resealable pack rather than a jar, and resealing it after opening may be tricky.


  • Spirulina powder in its purest form
  • Heavy metal analysis
  • Analysis certificate is available.


  • Confusion about where spirulina is farmed at the moment
  • After opening the pack, you may find it difficult to reseal it.

6. Sari Foods Co Organic Spirulina Powder 

Highlighted Characteristics

  • USDA certified organic and non-GMO 1 pound of pure spirulina powder
  • Currently imported from Korea and packaged at a GMP facility in the United States
  • Quality and safety tests were performed in the United States.
  • The producer provides certificates of analysis.

The non-GMO and USDA organic Sari Foods Company spirulina powder was derived from freshwater lakes in a remote region of Mongolia, but current labelling indicates it was sourced from Korea and third party tested in the US for quality and safety. It’s also packed at a GMP facility in the United States. Analysis certificates may be obtained from the manufacturer.

Several customers have reported that a recent batch of this pure 1 pound powder was extremely smelly, and since it comes in a pack rather than a jar, it may be more difficult to measure the powder out of.


  • Powder only
  • Organic
  • Non-GMO
  • Tested
  • Manufactured in the United States


  • A recent batch had a very strong odor.
  • The resealable pack is more difficult to weigh.

7. Soul Organics Spirulina Powder

Highlighted Characteristics

  • A resealable 8 ounce bag of pure spirulina powder
  • Tank farming in India produces
  • Several bodies independently tested
  • It has no GMO ingredients and has been certified organic by four organizations, including the USDA.

Soul Organics spirulina is organically certified by four organizations, including the USDA, and contains no GMO ingredients. This 8 ounce box of pure powder is tank farmed in southern India and has been independently tested by many organizations.

Several customers have expressed dissatisfaction with the flavor of this powder when compared to other spirulina powders, and since it comes in a resealable pack rather than a jar, you will most likely have to transfer it into another container before scooping it out.


  • Spirulina powder in its purest form
  • Organic
  • No GMOs
  • Tested


  • This may taste different from other spirulina powders.
  • The pack design might make measuring out the powder difficult.

8. BN Labs Spirulina Powder Organic 

Highlighted Characteristics

  • Pure spirulina powder collected in Mongolia in a resealable 8 ounce bag
  • This is USDA organic, non-GMO, and sustainably sourced.
  • Heavy metal contamination were tested by the manufacturer.

The BN organic spirulina powder is obtained sustainably, has no GMOs, and is USDA certified organic. This 8 oz resealable container of pure spirulina powder is gathered in Mongolia and, although the producer tests for heavy metal contamination, it is not independently tested.


  • Spirulina powder in its purest form
  • Organic
  • Non-GMO
  • Sourced responsibly
  • Tested


  • Although being tested, this is not done by a third party.
  • Uncertainty over what further tests, such as those for microbials, will be performed.

9. Earthrise Spirulina Natural Powder 

Highlighted Characteristics

  • A 6.4 oz container of California-grown pure spirulina powder
  • State and federal inspections are conducted on the property.
  • GRAS (Generally Recognized As Safe) certification
  • Herbicides and pesticides, as well as heavy metals and poisons, were tested.

The 6.4 oz jar of Earthrise spirulina natural was farmed in California, and the farm is inspected by the FDA and the state of California. It also follows quality norms. Pesticides and herbicides are not present in this spirulina, and the producer tests for these as well as toxins and heavy metals.

This powder is produced by one of the few firms in the continental United States that produce spirulina with GRAS accreditation. According to one customer, this powder is more prone to clumping and costs more than other brands of spirulina powder.


  • Spirulina from America
  • GRAS certification
  • Tested
  • Non-GMO
  • Free of pesticides and herbicides


  • This is a more costly premium spirulina powder.
  • When applied to liquids, it may clump more easily.

​10. Vimergy USA Grown Spirulina 

Highlighted Characteristics

  • An 8.8 ounce box of spirulina powder grown in the United States
  • Kosher certification and Non-GMO Project verification
  • Has GRAS (Generally Recognized As Safe) status
  • A third party tested it for quality and safety.

The Vimergy spirulina dietary supplement is Non-GMO Project Verified and kosher, and it is harvested in the United States. This 8.8 oz box of pure spirulina powder is pesticide and herbicide free, and it also has GRAS (Generally Recognized As Safe) classification. It is also subjected to independent quality and safety testing. Being a premium spirulina powder, it will cost more than other powders, and since it comes in a resealable bag rather than a jar, it may be more difficult to remove the powder and reseal after use.


  • Spirulina from America
  • GRAS certification
  • Tested
  • Non-GMO
  • Free of pesticides and herbicides


  • It will be more expensive than other spirulina powders.
  • The pack design makes extracting the powder more challenging.

Considerations When Purchasing Spirulina Powder

Spirulina is a dietary source in certain regions of Africa, where it is turned into dry cakes and is high in protein, vitamins, minerals, and particular antioxidants. Spirulina is also eaten in Mexico, where spirulina was gathered as food even during the Aztec period.

Spirulina is a cyanobacterium or blue-green algae that develops in subtropical salt and fresh water at circumstances that other water-dwelling species consider severe. It is often grown in natural or man-made lakes, collected, and freeze-dried.

Spirulina is a genus of many species, the most common of which being Spirulina maxima and Spirulina platensis, which are used as supplements.

It is manufactured commercially for use as an additive or color in some meals and, of course, supplements. Spirulina was originally classified as a plant, but as scientists learned more about its DNA, biochemistry, and physiology, it was reclassified as a Bacteria kingdom and Cyanobacteria phylum. Spirulina develops as minute spirals that adhere together and are simple to collect, and it is a protein complex called phycocyanin that gives spirulina its unique blue-green hue.

Spirulina is high in protein and vitamin content, and it also includes minerals such as zinc, magnesium, and selenium. Some of these vitamins and minerals may work as antioxidants in the body, preventing damage caused by molecules known as free radicals.

Spirulina: How to Use It

Since spirulina has a marine vegetable taste and savory tang, it might be unpleasant in certain dishes and beverages. When combined with sweet fruits such as mango or pineapple, the spirulina may counteract the sweetness while also taking the edge off some of the spirulina’s harsher taste. It’s also delicious mixed with pineapple or other sweet fruit juices. Try incorporating it into energy balls, baking it into cookies, or incorporating it into salad dressings. You may also combine two tablespoons with an avocado and seasonings to make homemade guacamole.

A tiny spoonful of spirulina powder may also be mixed into a glass of water and then drunk; however, be prepared for the water to become virtually black, and have a new glass of water nearby to drink immediately after to help avoid teeth discoloration.

Cleaning your teeth properly after taking spirulina powder will also aid in the prevention of tooth discoloration over time. Spirulina powder, not pills or capsules, causes tooth discoloration.

Spirulina Security

Spirulina is typically safe, with minimal negative effects recorded from individuals who take it at the prescribed amounts.

The United States Pharmacopeia (USP) indicates that when spirulina is correctly identified, manufactured, and utilized, there is no evidence of a major danger to health or other public health issue.

Most individuals may eat spirulina without experiencing any negative side effects; however, mild adverse effects may include headaches, sleeplessness, and nausea. Nevertheless, spirulina may not be acceptable for those with certain medical issues.

Spirulina is popular due to its immune-boosting characteristics; however, for persons who have autoimmune illnesses such as rheumatoid arthritis, lupus, or multiple sclerosis, spirulina may potentially make these problems worse. It has also been connected to a very unusual adverse effect characterized by a strong autoimmune reaction affecting skin and muscle. Anybody suffering from an autoimmune illness should avoid using spirulina or any other sort of algae supplement.

Spirulina contains phenylalanine, which should be avoided by anybody suffering from the metabolic condition phenylketonuria (PKU), since the body is unable to process it.

Spirulina may function as an anticoagulant, thinning the blood and increasing the time it takes for it to clot. If you have a bleeding problem or use blood thinners, spirulina may lower your blood’s capacity to clot, causing increased bleeding and bruising.

Spirulina, like everything else, may cause an allergic response, which can be lethal in rare situations. It has been indicated that those with pre-existing allergies are more likely to develop an adverse response to spirulina and should see their doctor before taking it.

Spirulina Contamination with Heavy Metals and Toxins

Wild-harvested spirulina is more likely to be polluted with heavy metals, bacteria, or microcystins, which are chemicals generated by blue-green algae as a defense against predators. Sadly, if ingested in large numbers, microcystins may be hazardous to our livers.

Certain supplements tainted with microcystin have been discovered in the United States, Italy, and China, suggesting that wild spirulina poses some public health risks. Spirulina cultivated in controlled circumstances has lower levels of microcystins because scientists can regulate its formation and eliminate it from the spirulina.

Nevertheless, the FDA does not regulate spirulina, so unless the producer does their own testing and makes the findings accessible, there is no assurance that the spirulina you purchase is free of toxins. Several respectable supplement makers disclose their findings, generally in the form of a certificate of analysis.

Many firms also adhere to good manufacturing principles, or GMP, and other production standards in order to assure a higher quality and safer product.

A limited number of spirulina powder producers in the United States may also have GRAS certification. This indicates that a chemical or substance added to food (food additive) is deemed safe by specialists, making it exempt from the Federal Food, Drug, and Cosmetic Act’s tolerance standards (FFDCA). To get GRAS designation, a company must demonstrate that there is expert consensus that the chemical or additive is safe for the intended purpose.

Spirulina’s Nutritional Value and Metabolic Advantages

The nutritional profile of spirulina is one of the reasons it is so popular as a supplement. One tablespoon of dried spirulina has about 20 calories and the following nutrients:


4 grams


1.67 grams


0.54 grams


95 micrograms


73 micrograms


14 micrograms


8 micrograms


two milligrams

It also includes vitamins A, B, C, and K.

Since it is so nutrient dense, spirulina may assist increase weight control programs. In a 2016 research, overweight people who ate spirulina for three months improved their BMI or body mass index. It may also aid in weight reduction by increasing metabolism. One tiny research found that ingesting 6 grams of spirulina daily might enhance metabolism while also helping persons with non-alcoholic fatty liver disease lose weight.

One animal research found that giving spirulina to mice with type 1 diabetes resulted with decreased blood sugar levels, greater insulin levels, and better enzyme markers in their livers. Spirulina supplementation has also been demonstrated to reduce fasting blood glucose levels, indicating that spirulina may be useful as a support meal for type 2 diabetes.

Spirulina’s Potential Significance in Cardiovascular Health

Spirulina has been found to lower blood pressure in a small sample of overweight persons with hypertension (high blood pressure). Spirulina may also assist to lower total cholesterol levels, as one analysis of previous studies found that spirulina was able to considerably lower total cholesterol levels as well as LDL or bad cholesterol while increasing the amount of good or HDL cholesterol. After three months, only one gram of spirulina per day was enough to lower total cholesterol.

Since hypertension and high cholesterol levels are connected to an increased risk of heart disease, it seems that spirulina may help lower our risk of heart disease. While research into the advantages of spirulina is still in its early stages, it will be some time before more is known about its impacts; nonetheless, preliminary findings are promising.

Additional Potential Advantages of Spirulina Supplementation

Allergic rhinitis occurs when the inner nose starts to expand as a result of an allergic response to pollen, bugs, or dust. Spirulina may help alleviate sneezing, nasal congestion, runny nose, and other symptoms of allergic rhinitis, as well as lower histamine levels in the body (which produces the allergic reaction).

Since spirulina contains tryptophan, an amino acid that aids in the manufacture of serotonin in the brain, it may aid in mental well-being. Since people with anxiety or depression generally have low serotonin levels, tryptophan may help enhance serotonin levels and reduce symptoms.

Spirulina may also be able to benefit our gut health by keeping good gut bacteria as we age, albeit this may be more beneficial when ingested as part of a high fiber diet rich in healthy stomach foods.

Spirulina may potentially have a function as an antitoxic agent in the body, combating toxins such as lead, mercury, arsenic, fluoride, and iron. As a result, spirulina may be effective as a therapeutic agent in addition to standard therapies for certain sorts of poisonings.


We hope you liked our in-depth examination of a variety of pure spirulina powders now on the market. We also hope you enjoyed learning about spirulina nutrition, how early medical research is pointing to some beneficial and hopeful future applications for spirulina, and the safety considerations you should keep in mind while purchasing and supplementing with spirulina powder.

If you have yet to include this superfood into your diet, we hope you now have the confidence to not only choose the finest spirulina powder for your diet and lifestyle, but also the simplest approach to incorporate it into your daily diet.


What are the best brands of spirulina powder?

FUL®, NOW Foods, New Farmers, Earthrise, Zhou’s Non-GMO Spirulina Powder, HealthForce Spirulina Manna, and Sari Foods are among the most dependable spirulina brands.

What are the top 5 spirulina brands?

You should be aware of the top ten and best spirulina brands in India in 2023.
Himalayan Organics Spirulina…. Carbamide Forte 100% Organic Spirulina Tablets…. Sunova Organic Spirulina Capsules…. Nutriwish Spirulina Powder…. Urban Platter Pure Spirulina Powder…. Grenera Spirulina Powder.
Additional details…•February 10, 2023

Which is the best spirulina in the world?

Here’s a short rundown of the top 15 spirulina supplements.
Organic Spirulina from Now Foods.
Spirulina from Hawaii.
Spirulina Spirulina Manna from Healthforce.
Organic Spirulina from Source Naturals.
Spiru Blue by Dr. Mercola.
Spirulina Powder from Viva Naturals.
Organic Spirulina Tablets from Triquetra Health.
Organic Spirulina from Swanson.
Additional details…•February 14, 2023

Is it safe to take spirulina powder everyday?

Definitely, taking spirulina every day is safe. Nevertheless, 5- 8 grams is regarded as a safe daily dose. It may cause some side effects if consumed in large quantities.

How do I choose a good spirulina?

or living situations that are unsuitable for spirulina. The color is one of the most important factors to consider while selecting spirulina. Period. Healthy spirulina is dark green with a blue tinge. Different colors indicate a nutritional shortage in the culture media and

How do you know if spirulina is good quality?

Spirulina should not have a strong or overwhelming flavor or a strong fishy odor. The hue of spirulina should be dark green. Excellent spirulina comes from farmers that utilize pure mineral water, grow in low-pollution settings with ample of sunshine, and do not use fermented nutrients.

Which country has the best spirulina?

Australian Spirulina, the world’s purest Spirulina, was compared to 24 other goods from across the globe (including USA, UK, Canada, Japan, New Zealand, India).

Who should not take spirulina?

Spirulina should be avoided by those who have the metabolic disorder phenylketonuria (PKU). Individuals with this uncommon illness are unable to metabolize the amino acid phenylalanine. Spirulina contains all of the amino acids, including phenylalanine.

Is spirulina the best superfood?

It may enhance cholesterol and triglyceride levels, decrease oxidation, lower blood pressure, and lower fasting blood sugar levels, according to research. Although additional study is required before making any firm assertions, spirulina may be one of the few superfoods deserving of the moniker.

How do you know if spirulina is pure?

Obtaining Pure Spirulina

Always get organic certified spirulina to guarantee you’re receiving pure, clean spirulina. The USDA organic label indicates that your spirulina was grown without the use of chemical fertilizers, synthetic pesticides, or genetically modified organisms.

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