-- Robert Preidt
WEDNESDAY, June 12 (HealthDay News) -- Taking high doses of
iodine and kelp supplements can be hazardous to your health, warns
the American Thyroid Association.
Adequate iodine intake is required for normal function of the
thyroid, a gland in the neck that produces hormones that control
the rate of many bodily activities. But too much iodine can lead to
Daily supplements containing more than 500 micrograms of iodine
should be avoided, the association recommended. Many iodine,
potassium iodide and kelp supplements contain iodine amounts that
are up to several thousand times higher than the daily tolerable
upper limit of 1,100 micrograms per day, they noted.
The recommended daily limit for iodine intake is 150 micrograms
for men and non-pregnant women. The recommended daily intake is 220
to 250 micrograms for pregnant women and 250 to 290 micrograms for
women who are breast-feeding.
Women should take multivitamins containing 150 micrograms of
iodine daily before conceiving, during pregnancy and while
breast-feeding, the experts said in an association news
"For other individuals, the U.S. diet generally contains enough iodine to meet nutritional needs, with common sources being iodized salt, dairy products, breads and seafood," Dr. Angela Leung, chair of the association's public health committee and an assistant professor of medicine at Boston University School of Medicine, said in the release.
There are only a few medical conditions in which the short-term
use of high amounts of iodine is indicated, the association
The U.S. Office of Dietary Supplements has more about
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