Chlorella — answers to chlorella algae
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A single-celled freshwater green algae grown and dried into powder or tablet form, sold as a whole-food supplement.
Why it’s used
Taken as a general nutritional supplement, often for its chlorophyll, protein, and micronutrient content, and sometimes marketed for detoxification support.
What the evidence says
Small human trials have looked at chlorella for markers like blood lipids, blood pressure, and immune measures, with mixed and generally modest results. There is no NIH Office of Dietary Supplements fact sheet on chlorella, and no large, well-controlled trial has established a clear health benefit for a specific outcome.
Where we looked
There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.
- PubMed: 38 records · searched August 2026
"Chlorella"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH] - PubMed: 9677 records · searched August 2026
"Chlorella"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Studies have used a range of forms (tablets, powder) and doses, making comparison difficult; most trials are small and short in duration.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.