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Spirulina: Is it an algae? episode artwork

EPISODE · May 18, 2026 · 5 MIN

Spirulina: Is it an algae?

from NutraSift: The nutraceutical innovation podcast · host Siftlink SA

Spirulina (Arthrospira platensis) is a cyanobacterium, not a true alga. It's prokaryotic (no nucleus), closer to bacteria than to the eukaryotic microalgae (chlorella, Haematococcus) it's constantly compared with. This taxonomic distinction matters: cyanobacteria can produce microcystins (hepatotoxins), and contamination from co-occurring Microcystis species is a real quality concern that the "superfood algae" branding overlooks.Publications of interest:https://pmc.ncbi.nlm.nih.gov/articles/PMC10302721/https://pmc.ncbi.nlm.nih.gov/articles/PMC10221061/https://pmc.ncbi.nlm.nih.gov/articles/PMC5371831/

Episode metadata supplied by the publisher feed · Published May 18, 2026

What this episode covers

Spirulina (Arthrospira platensis) is a cyanobacterium, not a true alga. It's prokaryotic (no nucleus), closer to bacteria than to the eukaryotic microalgae (chlorella, Haematococcus) it's constantly compared with. This taxonomic distinction matters: cyanobacteria can produce microcystins (hepatotoxins), and contamination from co-occurring Microcystis species is a real quality concern that the "superfood algae" branding overlooks.Publications of interest:https://pmc.ncbi.nlm.nih.gov/articles/PMC10302721/https://pmc.ncbi.nlm.nih.gov/articles/PMC10221061/https://pmc.ncbi.nlm.nih.gov/articles/PMC5371831/

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This episode is 5 minutes long.

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This episode was published on May 18, 2026.

What is this episode about?

Spirulina (Arthrospira platensis) is a cyanobacterium, not a true alga. It's prokaryotic (no nucleus), closer to bacteria than to the eukaryotic microalgae (chlorella, Haematococcus) it's constantly compared with. This taxonomic distinction matters:...

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