Sea moss (Irish moss)
Dried seaweed of the species Chondrus crispus, sold as a gel or capsule with broad health claims.
What the research shows
No sound research in humans.
The LactMed monograph states explicitly that no medicinal effect has been demonstrated and warns about iodine and heavy metals such as arsenic, lead, cadmium and mercury. Darias-Rosales (2020) analysed 30 seaweed samples in the laboratory and calculated that portions can exceed the upper limit for iodine intake. Research on health effects in humans is absent.
Who it makes sense for: Nobody: no effect has been demonstrated, and iodine and heavy metals create a real risk.
How we weigh evidenceClinical dosage
Scientific sources
The clinical dosages on this page are based on peer-reviewed research.
- Sea Moss (2006)Funded by: Overheidsdatabase (National Institute of Child Health and Human Development), geen commerciele financiering.
- Risk assessment of iodine intake from the consumption of red seaweeds (Palmaria palmata and Chondrus crispus).Darias-Rosales J et al. (2020)
We keep the dosages and values on this page as accurate as possible based on selected studies. New research may change these values. Nothing on this page is medical advice. If you have any doubts, always consult a doctor.