There have been relatively few studies in relation to the iodine content of seaweeds in Taiwan, and only one study specifically reported on the iodine content of seaweeds in Taiwan. The study using GC-ECD was very limited in seaweed samples. The iodine contents of three popular seaweed products in Taiwan dnori, wakame, and kom-budwere thus investigated using the GC-ECD method in the present study. The seaweed samples consisted of 10 nori products, 10 wakame products, and 10 kombu products. The method presented here requires relatively low-cost GC equipment and is also suitable for other food matrices. The iodine intake from seaweed in the current survey was calculated and compared with the iodine DRI of Taiwan. The benefits of seaweed consumption are also discussed.