Lithothamnion — answers to calcified red algae, marine algae mineral complex
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A genus of red marine algae that deposits calcium and other minerals in its cell walls; the dried, ground material is used as a natural mineral source in supplements.
Why it’s used
Taken as a source of calcium, magnesium, and trace minerals, and sometimes marketed for bone or joint support.
What the evidence says
Some small studies on branded lithothamnion-derived ingredients have examined joint comfort and mineral status, but independent, large-scale human trials are limited, and much of the marketing extends beyond what the research supports.
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: 1 record · searched August 2026
"Lithothamnion"[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: 80 records · searched August 2026
"Lithothamnion"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
Studies on specific branded extracts have used varying daily amounts; findings have not been broadly replicated across independent research groups.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.