Skip to main content
SupplementScience

Types of Spirulina: Forms & Bioavailability

Reviewed by·PharmD, BCPS

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
PowderHighSmoothies, shakes, and juicing — allows flexible dosing and rapid absorption; most economical per serving
Tablets (Compressed)HighConvenience and portability — no taste, precise dosing; ideal for those who dislike the strong algae flavor
CapsulesHighStandard supplementation — encapsulated powder for easy swallowing; may require multiple capsules to reach clinical doses

Powder

Bioavailability: High. Best for: Smoothies, shakes, and juicing — allows flexible dosing and rapid absorption; most economical per serving.

Tablets (Compressed)

Bioavailability: High. Best for: Convenience and portability — no taste, precise dosing; ideal for those who dislike the strong algae flavor.

Capsules

Bioavailability: High. Best for: Standard supplementation — encapsulated powder for easy swallowing; may require multiple capsules to reach clinical doses.

Full Spirulina Guide

References

  1. Huang H, Liao D, Pu R, Cui Y (2018). Quantifying the effects of spirulina supplementation on plasma lipid and glucose concentrations, body weight, and blood pressure. Diabetes, Metabolic Syndrome and Obesity. DOI PubMed
  2. Romay Ch, González R, Ledón N, Remirez D, Rimbau V (2003). C-phycocyanin: a biliprotein with antioxidative, anti-inflammatory and neuroprotective effects. Current Protein & Peptide Science. DOI PubMed
  3. Selmi C, Leung PS, Fischer L, German B, Yang CY, Kenny TP, Cysewski GR, Gershwin ME (2011). The effects of Spirulina on anemia and immune function in senior citizens. Cellular & Molecular Immunology. DOI PubMed
  4. Cingi C, Conk-Dalay M, Cakli H, Bal C (2008). The effects of spirulina on allergic rhinitis. European Archives of Oto-Rhino-Laryngology. DOI PubMed
  5. Ou Y, Lin L, Yang X, Pan Q, Cheng X (2013). Antidiabetic potential of phycocyanin: effects on KKAy mice. Pharmaceutical Biology. DOI PubMed
  6. Finamore A, Palmery M, Bensehaila S, Peluso I (2017). Antioxidant, immunomodulating, and microbial-modulating activities of the sustainable and ecofriendly spirulina. Oxidative Medicine and Cellular Longevity. DOI PubMed
  7. Mazokopakis EE, Papadomanolaki MG, Fousteris AA, Kotsiris DA, Lampadakis IM, Ganotakis ES (2014). The hepatoprotective and hypolipidemic effects of Spirulina (Arthrospira platensis) supplementation in a Cretan population with non-alcoholic fatty liver disease. Turkish Journal of Gastroenterology. PubMed