100% Organic Spirulina

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Get a green boost to your health with Swanson 100% Organic Spirulina! An optimum source for antioxidant protection that will boost your immune system's health and vitality, organic spirulina ranks as one of nature's most powerful superfoods. At over 60% protein, spirulina is the most potent and digestible source of vegetarian protein! This member of the blue-green algae family packs in a whole lot of antioxidant and phytonutrient nutrition along with high amounts of beta-carotene, essential amino acids, minerals, B vitamins and chlorophyll. Spirulina is also rich in gamma-linolenic acid (GLA).


Supplement Facts

Serving Size 2 Vegan Tablets

Servings Per Container 90

Amount Per Serving % Daily Value
Protein† <1 g
Iron† 0.5 mg 2.78%
Sodium† 10 mg 0.43%
Organic Spirulina (Arthrospira platensis) (microalgae) 1 g *

†Typical analysis. Nutrients are naturally occurring.*Daily Value not established.

Suggested Use: As a dietary supplement, take two vegan tablets three times per day with water.

Warning: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.

Storage Instructions: Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.

Country of Origin: Product of China

Certifier Information: Certified Organic by Minnesota Crop Improvement Association (MCIA), St. Paul, MN 55108.




  1. What Is the Difference Between Spirulina and Chlorella?
    Both spirulina and chlorella are nutrient-rich algae, but they differ in composition. Spirulina is naturally higher in protein and contains phycocyanin, while chlorella is richer in chlorophyll and has a tough cell wall that is often broken to improve nutrient availability. Both provide antioxidants and phytonutrients that support overall wellness.
  2. What Is Phycocyanin and Why Is It Important?
    Phycocyanin is the blue-green pigment that gives spirulina its distinctive color and is one of its most studied bioactive compounds. Research suggests phycocyanin has antioxidant activity and may help support cellular health by protecting cells from oxidative stress.
  3. Is Spirulina a Complete Protein?
    Yes. Spirulina contains all nine essential amino acids, making it a complete protein source. While it is not typically consumed in amounts large enough to serve as a primary protein source, it can help contribute additional protein and amino acids to a balanced diet.
  4. Is Swanson Certified Organic Spirulina Suitable for Special Diets?
    Swanson Certified Organic Spirulina is made with non-GMO, USDA Organic spirulina and is suitable for vegan and vegetarian lifestyles. It is also gluten free and dairy free, making it a convenient choice for a variety of dietary preferences and restrictions.