Potential risks posed by macroalgae for application as feed and food - a Norwegian perspective
Publication
2016 - National Institute of Nutrition and Seafood Research (NIFES) Arne Duinker, Irja Sunde Roiha, Heidi Amlund, Lisbeth Dahl, Erik-Jan Lock, Tanja Kögel, Amund Måge and Bjørn Tore Lunestad
The report concluded that high levels of iodine, cadmium and arsenic may be a health risk in some seaweed, but other components may also be problematic.
Wild harvested algae may be different than farmed algae, but there are also many other important factors like the type of species and the age of the seaweed.