Kombu (KELP):

Rich in iodine, and prevents goiter
The nutrients of kombu (kelp), which is used for a flavorful broth and cooked with other ingredients, are rich in variety. It is a good source of iodine, which prevents goiter, calcium, vitamin A and dietary fiber. It also contains a substance, which brings down the blood pressure.
Effective for preventing obesity, preventing hypertension, relieving constipation.

WAKAME:

Iodine produces a hormone which activates metabolism
Wakame is familiar to Japanese people. It is rich in iodine and calcium, so it is highly recommended to growing children and pregnant women. It also contains water-soluble fiber, which is good for the stomach, and alginic acid.
Effective for preventing hypertension, preventing osteoporosis, preventing arteriosclerosis