Navigation Links
Low Prenatal Iodine May Affect Child's Brain Development

THURSDAY, May 23 (HealthDay News) -- Mild to moderate iodine deficiency during pregnancy may have a negative long-term impact on children's brain development, British researchers report.

Low levels of the so-called "trace element" in an expectant mother's diet appear to put her child at risk of poorer verbal and reading skills during the preteen years, the study authors found. Pregnant women can boost their iodine levels by eating enough dairy products and seafood, the researchers suggested.

The finding, published online May 22 in The Lancet, stems from an analysis of roughly 1,000 mother-child pairs who were tracked until the child reached the age of 9 years.

"Our results clearly show the importance of adequate iodine status during early pregnancy, and emphasize the risk that iodine deficiency can pose to the developing infant," study lead author Margaret Rayman, of the University of Surrey in Guildford, England, said in a journal news release.

The study authors explained that iodine is critical to the thyroid gland's hormone production process, which is known to have an impact on fetal brain development.

According to the World Health Organization, iodine "sufficiency" is defined as having a so-called iodine-to-creatinine ratio of 150 micrograms per gram (mcg/g) or more; those with a ratio falling below 150 mcg/g are deemed to be iodine "deficient."

By examining first-trimester urine sample data collected by a long-term study of parents and children based in Bristol, England, the study authors found that just over two-thirds of the mothers had been iodine-deficient while pregnant.

After adjusting for other factors (such as breast-feeding history and parental education), the researchers found that iodine deficiency during pregnancy raised the child's risk for having a lower verbal IQ, and poorer reading accuracy and comprehension by the time they turned 8 or 9.

What's more, the more iodine levels dropped during pregnancy, the lower the child's performance in terms of IQ and reading ability, the study authors noted.

Study co-author and registered dietitian Sarah Bath agreed that "pregnant women and those planning a pregnancy should ensure adequate iodine intake." She suggested in the news release that "good dietary sources are milk, dairy products and fish. . . . Kelp supplements should be avoided as they may have excessive levels of iodine."

The U.S. National Institutes of Health states that 3 ounces of baked cod contains approximately 99 mcg of iodine, 1 cup of plain low-fat yogurt contains about 75 mcg, and 1 cup of reduced-fat milk has an estimated 56 mcg.

More information

For more on iodine, visit the U.S. National Institutes of Health.

-- Alan Mozes

SOURCE: The Lancet, news release, May 22, 2013

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Ariosa Diagnostics Expands Harmony Prenatal Test to Twin Pregnancies and Launches New X,Y Analysis Test
2. Synthetic Pot Use Can Mimic Symptoms of Prenatal Disorder
3. Prenatal Use of Common Epilepsy Drug Tied to Higher Autism Risk
4. ACMG releases statement on noninvasive prenatal screening
5. African-ancestry babies get less prenatal care in Brazil
6. Dr. Melody Jackson Joins AlignLife of Midtown Memphis To Provide Prenatal Care to Local Moms and Soon-To-Be Moms
7. Women's Excellence in Midwifery Opens New Center for Prenatal Care and Women's Healthcare in Lake Orion, MI; Ribbon Cutting Ceremony Scheduled for February 13th, 2013
8. Prenatal inflammation linked to autism risk
9. Prenatal Antidepressants Dont Raise Fetal, Infant Death Risk: Study
10. Prenatal tests more informative using microarray technology, find GW researchers
11. Documenting womens experiences with chromosome abnormalities found in new prenatal test
Post Your Comments:
Related Image:
Low Prenatal Iodine May Affect Child's Brain Development
(Date:11/30/2015)... ... November 30, 2015 , ... It’s inevitable that everyone will experience death ... or animal pass away, death lives among us. It is your perspective, however, that ... family of 11 children, author T Sky understands that she may see death more ...
(Date:11/30/2015)... ... November 30, 2015 , ... Sikka Software announced today that ... Their Ecosystem empowers dentists to make complex business decisions by providing the tools and ... a free fee survey with 10 procedures customized by zip code. , The ...
(Date:11/30/2015)... , ... November 30, 2015 , ... ... alliance around Novus’ TIGR® Matrix Surgical Mesh technology for soft tissue repair in ... TIGR® Matrix is a long-term resorbable surgical mesh intended to support and reinforce ...
(Date:11/30/2015)... ... November 30, 2015 , ... SIMmersion’s ability ... to the medical schools of the future. To reach an audience of key ... 2015 ChangeMedEd conference in Chicago, organized by the American Medical Association. , ...
(Date:11/30/2015)... CALIF. (PRWEB) , ... November ... ... ( ), a leading provider of enterprise Time and Attendance/Workforce Management ... status in the Microsoft Partner Program with competencies in the Application Development, ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... , Belgium , Nov. 30, 2015 ... sciences company focused on developing blood-based diagnostic tests for a ... the Company will present at the LD Micro Conference, which ... Los Angeles, CA. Attending from VolitionRx will be ... Scott Powell , Vice President of Investor Relations. ...
(Date:11/30/2015)... , November 30, 2015 Mexico Healthcare and ... Life Sciences Report 2015 . --> Pharmaboardroom releases its ... Latin America , a country of over ... a country of over 122 million people. --> It ... pharmaceuticals, or life sciences insights into the second largest pharma and ...
(Date:11/30/2015)... 2015 Sectra (STO: SECT ... entered into a multi-year agreement to provide Breast Imaging ... Kentucky Breast Care to increase collaboration with sub-specialists around ... patients. --> Sectra (STO: SECT ... entered into a multi-year agreement to provide Breast Imaging ...
Breaking Medicine Technology: