If somebody ask me if I have eaten seaweed, I'll say no.. not this type anyway as I haven't tried sushi in my entire life. I have eaten fresh seaweed though, or I have tried when I was in the Philippines.
Seaweed is known to be rich in iodine. Although there are pros and cons (and so tv mounts), when eaten in moderation will benefit the body.
* Sheets of seaweed can be shredded and added to salads or rolled up to make sushi. In powder form, it can be added to juices and smoothies or sprinkled over meals.