View clinical trials related to Iodine Deficiency.
Filter by:Mild-to-moderate iodine deficiency remains a problem in many parts of the world, including Norway. Of particular concern are fertile, pregnant, and lactating women. The Norwegian Dairy Council developed a digital iodine-specific food frequency questionnaire (I-FFQ) for the assessment of iodine intake levels, but it has yet to be validated. The main objective was thus to investigate the relative validity of the I-FFQ by comparing estimates of iodine intake obtained from the I-FFQ against a single 24-hour recall (24HR) and urinary iodine concentration (UIC) in fertile women.
In describing the iodine status involving health conditions of the minority groups, this observational study aims to learn about the iodine status of the Indigenous Peoples (Karen) in a subdistrict in western Thailand. The Participants will be collected their urine to determine urinary iodine concentrations At the same time, their household salt will be also collected to determine iodine content.
To determine and explore the iodized salt concentration provided in the local community, especially in the Phu Kut district whether it meets the standard or not. This district is located in a mountainous area which means that the local community confronts with geographical access due to the limited transportation and road condition, in addition, it is quite far from downtown approximately 26 kilometers and it is difficult to access the iodized salt consumption. On the other hand, since 2013, the Lao People's Democratic Republic has implemented the iodized survey of urine among the primary students, this time could be the chance to compare based on the previous data, which will be an important source of the data for certifying the quality of iodized salt available in the local community that could be one cause of lacking iodized salt intake. Furthermore, the investigators could conduct the survey and monitor the current action plan related to iodized consumption in Laos as well, in order to eradicate diseases concerning with lacking iodized salt intake. Objectives 1. To investigate the nutritional status of school-aged children (SAC) living in Phu Kut City, Xieng Khouang province. 2. To investigate the iodine status and iodized salt use of school-aged children (SAC) living in Phu Kut City, Xieng Khouang province.
Seaweed is becoming increasingly popular in the Western part of the world, especially sushi wrapped in nori and seaweed salad, also called wakame. There are limited data on the iodine content of different seaweed products in the Norwegian Food composition table. Furthermore, there is limited available research regarding in vivo bioavailability of iodine from seaweeds. The objective of this study is to assess whether iodine from a sushi meal (with nori, Porphyra spp), and a wakame salad (Undaria pinnatifida) has similar bioavailability as a potassium iodide reference supplement of similar iodine content.
The goal of this observational study is to compare urine iodine levels of participants with/without periodontitis. The main question it aims to answer is there a relationship between iodine levels of urine and periodontitis. Participants will give urine samples without any intervention.
PICk study is a mHealth intervention in women trying to conceive and women up to 14 weeks pregnant, aiming to guide food choices, to achieve the recommended iodine intake through diet.
This study aims to investigate the benefit of increased intake of cows' milk during pregnancy on iodine status.
In this project, the investigators propose an intervention design testing the efficacy of a food reformulated with seaweed as an ingredient in meal, capsules against placebo and no intervention controls. The randomised control trial (supplementation) will last 24 weeks. The aim is to study the effect of the food matrix on variables associated with iodine nutrition: iodine status and thyroid function.
Physiological changes necessitate the use of pregnancy-specific reference ranges for thyrotrophin (TSH) and free T4 (FT4) to diagnose thyroid dysfunction during pregnancy. Although many centers use fixed upper limits for TSH of 2.5 or 3.0 mU/L, this may lead to overdiagnosis or even overtreatment. The new guidelines of the American Thyroid Association have considerably changed recommendations regarding thyroid function reference ranges in pregnancy accordingly. Any hospital or physician that is still using the 2.5 or 3.0 mU/l cut-off for TSH during pregnancy should evaluate their own lab-specific cut-offs. The investigator's objective is to establish a rational reference range of serum TSH for the diagnosis of subclinical hypothyroidism in the first, second, and third trimester of pregnant women in the Sancaktepe region in Turkey.
Many of the Caribbean island nations have no data on iodine status in their populations. Iodine deficiency in children can reduce IQ but can be easily corrected through a program of salt iodization. The study will be located at 11 islands of the Caribbean region. At each of the 11 study sites, we will measure the iodine status in school-age children by collecting morning spot urine samples for measurement of urinary iodine concentration (UIC). We will also measure height and weight in all children. We will collect a repeat, next-day spot urine sample in 1/3rd of children to adjust for intra-individual variation in spot UIC and calculate the distribution of population intake.