Iodine deficiency is very rare in Japan, but people in the U.S. and the rest of the world are almost always deficient. You will see why when you look at this chart. Dried Seaweed “nori” the black wrap around rolled sushi is a staple food in Japan. It can be an acquired taste, but the iodine you get from it is very high. I put it on my daily salad.
However, be aware the dried seaweed you get does NOT use canola oil (an inflammable oil) – it is not good for your digestive system. Do you know the area around the greater lake is called “goiter belt”? The area is known for severe iodine deficiency according to Dr. David Brownstein M.D. Keep taking iodine on daily basis will help you for not having hypothyroidism/hyperthyroidism/Hashimoto’s autoimmune diseases.