抄録
Studies were carried out to investigate iodine contents in human milk with relation to dietary algae consumption by nursing women and to estimate stable iodine intake by breast-fed babies. The iodine contents in human milk collected from the Tokai-mura area showed a fairly wide variation ranging from 80 to 7, 000μg/l, though the highest frequency was around 150μg/l. It was observed that high contents were closely related to the intake of tangle (Konbu), Laminariaceae, specifically tangle stock and/or tangle shavings (Tororokonbu) as soup. The temporal increase was followed by the rapid decrease when the mothers stopped taking the tangle stock and/or tangle shavings soup.
It was observed that water-extractability of iodine from tangle was much higher than that from the other algae, and the water-extractable iodine was absorbable to the human body.
