Spirulina

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This blue-green algae is a tremendous whole food, featuring the antioxidant support of beta-carotene and phycocyanin, a free radical fighting antioxidant. Swanson Spirulina delivers 500 mg of this nutrient-rich green food in a single-tablet serving. Spirulina also has protein, amino acids, minerals including iron, B vitamins and cleansing chlorophyll. 


Supplement Facts

Serving Size 1 Tablet

Servings Per Container 180

Amount Per Serving % Daily Value
Spirulina (Arthrospira platensis) (microalgae) 500 mg *

*Daily Value not established.

Other Ingredients: Microcrystalline cellulose (plant fiber), croscarmellose sodium, stearic acid, magnesium stearate, calcium carbonate, silica, hydroxypropyl methylcellulose, clear coating.

Suggested Use: As a dietary supplement, take one tablet three times per day with water, preferably on an empty stomach.

Warning: For adults only. Consult your physician 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.




  1. What are the benefits of taking Spirulina supplements?
    Spirulina is a nutrient-rich blue-green microalgae that provides protein, amino acids, minerals, B vitamins, chlorophyll, beta-carotene, and phycocyanin to support daily nutrition and overall wellness.
  2. How does spirulina support antioxidant health?
    Spirulina contains antioxidant compounds including phycocyanin and beta-carotene, which help protect cells from oxidative stress caused by free radicals.
  3. Does spirulina support healthy immune function?
    Its nutrients and antioxidant phytonutrients help support normal immune function and the body's natural defenses as part of a balanced diet.
  4. Is spirulina a good source of plant-based nutrition?
    Yes. Spirulina supplies plant-based protein and a broad range of naturally occurring nutrients in a convenient whole-food format.
  5. Can I take Spirulina every day?
    Yes. Spirulina can be taken daily according to the product label as part of a consistent wellness routine.
  6. Is Swanson Spirulina suitable for special diets?
    Swanson Spirulina tablets are suitable for vegan and vegetarian lifestyles. Review the current label if you have specific allergen or dietary requirements.