Dulse — answers to dulse seaweed
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A red seaweed traditionally eaten as a food, particularly in coastal Ireland and Atlantic Canada. In supplements it appears dried and ground, and is a natural source of iodine and trace minerals.
Why it’s used
Taken as a whole-food source of iodine and other minerals, or included in sea-vegetable blends.
What the evidence says
Dulse has not been the subject of dedicated clinical trials as a supplement ingredient. What is known comes mainly from nutrient-composition analyses of the seaweed as a food, not studies of a supplement dose or effect.
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: 0 records · searched August 2026
"Dulse"[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: 49 records · searched August 2026
"Dulse"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
No standard supplement dose has been established in the research literature; iodine content in seaweed can vary considerably by batch and growing conditions.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.