Dietary Relationship with 24 h Urinary Iodine Concentrations of Young Adults in the Mountain West Region of the United States

Autor: D. Enette Larson-Meyer, Demetre E. Gostas, Hillary A. Yoder, Evan C. Johnson, Ainsley E. Huffman
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Male
medicine.medical_specialty
Adolescent
Nutritional Status
Thyrotropin
Physiology
chemistry.chemical_element
Iodine Status
lcsh:TX341-641
030209 endocrinology & metabolism
Thyroid Function Tests
Iodine
Diet Surveys
Article
Statistics
Nonparametric
Young Adult
03 medical and health sciences
0302 clinical medicine
Thyroid-stimulating hormone
Southwestern United States
medicine
adults
Humans
030212 general & internal medicine
Sodium Chloride
Dietary
Young adult
Nutrition and Dietetics
business.industry
Public health
Food Frequency Questionnaire
Feeding Behavior
medicine.disease
Iodine deficiency
iodized salt
iodine intake
Diet
Iodised salt
Cross-Sectional Studies
Nutrition Assessment
chemistry
Female
Urinary iodine
Thyroid function
business
dairy intake
lcsh:Nutrition. Foods and food supply
Food Science
Zdroj: Nutrients
Volume 12
Issue 1
Nutrients, Vol 12, Iss 1, p 121 (2020)
ISSN: 2072-6643
DOI: 10.3390/nu12010121
Popis: Background: Iodine deficiency is not seen as a public health concern in the US. However certain subpopulations may be vulnerable due to inadequate dietary sources. The purpose of the present study was to determine the dietary habits that influence iodine status in young adult men and women, and to evaluate the relationship between iodine status and thyroid function. Methods: 111 participants (31.6 ±
0.8 years, 173.2 ±
1.0 cm, 74.9 ±
1.7 kg) provided 24 h urine samples and completed an iodine-specific Food Frequency Questionnaire (FFQ) for assessment of urinary iodine content (UIC) as a marker of iodine status and habitual iodine intake, respectively. Serum Thyroid Stimulating Hormone (TSH) concentration was evaluated as a marker of thyroid function. Spearman correlational and regression analysis were performed to analyze the associations between iodine intake and iodine status, and iodine status and thyroid function. Results: 50.4% of participants had a 24 h UIC <
100 µ
g/L). Dairy (r = 0.391, p <
0.000) and egg intake (r = 0.192, p = 0.044) were the best predictors of UIC, accounting for 19.7% of the variance (p &le
0.0001). There was a significant correlation between UIC and serum TSH (r = 0.194, p <
0.05) but TSH did not vary by iodine status category (F = 1.087, p = 0.372). Discussion: Total dairy and egg intake were the primary predictors of estimated iodine intake, as well as UIC. Iodized salt use was not a significant predictor, raising questions about the reliability of iodized salt recall. These data will be useful in directing public health and clinical assessment efforts in the US and other countries.
Databáze: OpenAIRE
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