Changes of Iodine Nutritional Status in the Elderly after Replacing Iodized Salt with Non-Iodized Salt for Half a Year.
Elderly
Iodine nutritional status
Iodized salt
Non-iodized salt
Journal
Biological trace element research
ISSN: 1559-0720
Titre abrégé: Biol Trace Elem Res
Pays: United States
ID NLM: 7911509
Informations de publication
Date de publication:
Mar 2023
Mar 2023
Historique:
received:
13
02
2022
accepted:
22
03
2022
pubmed:
4
5
2022
medline:
8
2
2023
entrez:
3
5
2022
Statut:
ppublish
Résumé
China has issued the "Reform Plan of the Salt Industry System" in 2016 and it is necessary to attach the importance to the changes of iodine nutritional status of those people who might consume non-iodized salt for a long time. Forty-six elderly subjects were recruited and replaced iodized salt with non-iodized salt for 6 months. Urine iodine concentration (UIC), dietary iodine intake, thyroid function, thyroid B-ultrasound, and plasma iodine were monitored during the follow-up period. The median dietary iodine intakes of the baseline, the 1st, 2nd,3rd, 4th, and 6th month were 255.3 µg/d, 183.6 µg/d, 164.6 µg/d, 179.2 µg/d, 139.4 µg/d, and 146.9 µg/d, respectively. The median UIC of baseline and follow-up was 155.7 (111.0-263.1) µg/L and 69.7(36.7-119.8) µg/L, respectively. The proportion of urinary iodine less than 50 g/L at the baseline and follow-up was 3.0 (0 ~ 8.9)% and 36.0 (33.1 ~ 38.9)%, respectively. Dietary iodine intake had a significant correlation with urine iodine. Six subjects (15.4%) had abnormal thyroid function. Three subjects (7.7%) had first-onset new nodules or enlarged solid nodules and the median UIC of these three subjects during the follow-up period was 39.8 µg/L, which was significantly lower than that of other subject (74.0 µg/L). T4 and T3 had a significant correlation with plasma iodine. The importance of monitoring and evaluating iodine nutrition of people consuming non-iodized salt should be stressed to prevent the potential poor iodine nutrition and iodine deficiency diseases.
Identifiants
pubmed: 35505154
doi: 10.1007/s12011-022-03216-4
pii: 10.1007/s12011-022-03216-4
doi:
Substances chimiques
iodized salt
0
Iodine
9679TC07X4
Sodium Chloride, Dietary
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1019-1025Subventions
Organisme : the MAJOR PUBLIC HEALTH PROJECT 'Survey and Evaluation of Iodine Nutrition and Thyroid Diseases of Chinese Population'
ID : 131031107000160007
Informations de copyright
© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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