Chlorella Pyrenoidosa Powder
Whole-algae food supplement. Generally well tolerated; concerns include possible heavy metal contamination depending on growing conditions, photosensitization rarely reported, and possible interactions with anticoagulants due to vitamin K content.
What it is
Dried powder of the green microalga Chlorella pyrenoidosa.
Dietary supplement and green colorant; source of protein, chlorophyll, B12 analogs.
Why it's flagged
- heavy metal contamination risk
- vitamin K (anticoagulant interaction)
What regulators actually say
"GRAS Notice Inventory - chlorella-related notifications listed under FDA's GRAS notice database."
"Chlorella vulgaris, Chlorella luteoviridis, Chlorella pyrenoidosa - listed in EU Novel Food Catalogue with consumption history before 15 May 1997."
Regulatory status
United States — FDA
Used as dietary ingredient; some Chlorella forms have GRAS notices
European Union — EFSA
Considered traditional food in EU; not a Novel Food when from C. vulgaris/pyrenoidosa pre-1997
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