Tag: Kombu iodine

With certain kelp species containing thousands of micrograms of iodine per single gram, seaweed is a powerful natural source of this essential mineral. For those seeking the highest concentration, the answer to which seaweed has the highest iodine is overwhelmingly kombu kelp, but its potency requires careful and measured consumption.

According to a 2024 review, some seaweed species contain elevated levels of heavy metals like arsenic and cadmium, highlighting the importance of understanding which seaweed should be avoided. While often celebrated for its nutrient density, certain varieties can pose risks due to excessive iodine, harmful toxins, and environmental pollutants.