These values have essentially remained unchanged in the last three NHANES surveys, indicating that the dietary iodine intake of the general U.S. population has remained stable since 2000 [36]. The World Health Organization (WHO), United Nations Childrens Fund (UNICEF), and the International Council for the Control of Iodine Deficiency Disorders (ICCIDD) recommend a slightly higher iodine intake for pregnant women of 250 mcg per day [3,7]. 2009 Nov;90(5):1264-1271. Variability of iodine content in common commercially available edible seaweeds. include protected health information. Median urinary iodine concentrations of 100199 mcg/L in children and adults, 150249 mcg/L in pregnant women and >100 mcg/L in lactating women indicate iodine intakes are adequate [3]. This section focuses on four areas of biomedical research examining iodines role in health and disease: fetal and infant development, cognitive function during childhood, fibrocystic breast disease, and radiation-induced thyroid cancer. Seaweed is an especially good source. The thyroid is a butterfly-shaped organ in your neck that produces hormones that regulate bodily activities, like metabolism (the conversion of food to energy). Iodine deficiency can lead to hypothyroidism, where the thyroid doesn't produce enough hormones. The high dose may not suit people new to iodine supplements. [. Certain brands are more expensive than others, but price isnt necessarily a good indicator of quality. Best Pract Res Clin Endocrinol Metab. Effect of inadequate iodine status in UK pregnant women on cognitive outcomes in their children: Results from the Avon Longitudinal Study of Parents and Children (ALSPAC). Some alternative medicine specialists suggest iodine tablets or kelp supplements which are high in iodine for hypothyroidism. Symptoms of iodine toxicity include nausea, vomiting, fever, diarrhea, a weakened heartbeat, and burning throat and mouth (1). They do not apply to people taking iodine under a doctors care. For example, a 2021 review in the American Journal of Health System Pharmacy looked at common misperceptions of iodine allergy. The manufacturers recommended serving size is 1 capsule taken once or twice per day with a meal. Some iodine supplements are also sourced from kelp (seaweed). The human body does not naturally produce it, but it is found in some foods. Vegans, people with certain food allergies or lactose intolerance, and others who consume no or minimal amounts of these foods might not obtain sufficient amounts of iodine [49,50]. Iodine supplementation improved iodine status (median urinary iodine concentration after supplementation was 145 mcg/L) and significantly improved measures of perceptual reasoning and overall cognitive score compared with children taking a placebo. Br J Nutr. These are all hallmark symptoms of hypothyroidism, a condition in which the thyroid, a small gland at the front of your neck, slows down or . However, more recent research suggests that iodine allergies may actually be due to another substance and not iodine. Similarly, the American Academy of Pediatrics recommends that women who are pregnant, planning to become pregnant, or lactating take a daily supplement providing at least 150 mcg iodine and use iodized salt [67].
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