Jos on alkavaa tai lievää kilpirauhasen vajaatoimintaa,

"The relationship between iodine and the thyroid is complicated. Some alternative practitioners simplistically declare that all thyroid patients should take iodine -- or an iodine-containing herb like kelp. That practice can be problematic for many people, because many cases of autoimmune thyroid disease -- which is by far the most common cause of thyroid conditions in the U.S. -- are not due to iodine deficiency. The likelihood that your thyroid problem is caused by iodine deficiency is a factor of your geographic location, diet, and use of salt and iodized products, but the odds are, you are not iodine deficient.

Your physician or nutritionist can test your iodine levels via a urinalysis test, if you wish to be evaluated. If, like many patients, you decide on your own to try kelp, iodine, or one of the many thyroid-supporting supplements (almost all of them contain high amounts of iodine or kelp), to see if they can help you, be aware of the risks. A percentage of patients are very sensitive to iodine/kelp supplementation, and find that it aggravates their thyroid problem."

Eli - pieni määrä jodia on tarpeen, mutta turhan suuri määrä voi aiheuttaa pahempaa kilpirauhassekoilua. Koska tässäkin maassa on aika epätodennäköistä, että kilpparin "hitaus" johtuu jodinpuutteesta (jodinsaantiaan voi laskea vaikka Finelin sivuilla) on parempi varmistua jodinpuuttestaan vaikka verikokein ennen mitään merileväkokeilua.