Тут одна гражданка давеча про морскую соль спрашивала, да?
"Морская соль содержит йод по определению. Это факт", мол, говорит.
"Хорошие люди и не умеют себя поставить на твердую ногу" (С)


читаем первую же ссылку, которую выдает гугль на "sea salt iodine content"

http://www.saltinstitute.org/iodine-sea salt.html

There is little iodine in natural sea salt.

Two studies examine this question:

Fisher and L'Abbe (1980) tested non-iodized sea salt and iodized table salt and sea salt. The authors found 52.9 - 84.6 micrograms iodine/gram of salt in iodized salt and 1.2 - 1.4 micrograms iodine/gram in non-iodized sea salt. [see Fisher, Peter W. F. and Mary L'Abbe. 1980. Iodine in Iodized Table Salt and in Sea Salt. Can. Inst. Food Sci. Technolo. J. Vol. 13. No. 2:103-104. April]

Aquaron (2000) determined iodine content of natural sea salt and rock salt, and iodized salt. The author found iodine levels of less than 0.71 milligrams iodine/kilogram of salt (micrograms/gram) in non-iodized salt and 7.65 - 100 mg iodine/kg of salt in iodized salt (depending on the country's iodine laws). [see Aquaron, R. 2000. Iodine content of non iodized salts and iodized salts obtained from the retail markets worldwide. 8th World Salt Symposium. Vol. 2:935-940]


А вот еще ссылка, на самого это Aquaron собственнно http://www.webiodine.com/dl/engl/pdf/li t/4.1.14.pdf
"... results of iodine determination in 81 natural salts samples collected across 21 different countries. All these salts are poor in iodine (< 0, 71 mg I /kg) .... This appreciable iodine amount is due to the preparation procedure: direct evaporation of ground or underground brine by sun (50°C)."

"The salt originating from small scale producers (Guerande, Ile de Ré, Portovecchio) contains also low levels of iodine (+0,57 mg I/kg) even if one of them claims on the label "rich in iodine" (к сожалению, самих таблиц по ссылке нету)