Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland
Background/objectives: Significant changes have been reported in dietary habits and food availability in Iceland that would be expected to compromise selenium intake and status, especially among young people. These include substantial decreases in the consumption of fish and milk, as well as the sel...
Published in: | Food & Nutrition Research |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Swedish Nutrition Foundation
2012
|
Subjects: | |
Online Access: | https://doi.org/10.3402/fnr.v56i0.18476 https://doaj.org/article/925dc16b8bda4c52b6ecefe8b08cb037 |
id |
ftdoajarticles:oai:doaj.org/article:925dc16b8bda4c52b6ecefe8b08cb037 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:925dc16b8bda4c52b6ecefe8b08cb037 2023-05-15T16:48:43+02:00 Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland Ingibjorg Gunnarsdottir Laufey Steingrimsdottir Helga Gunnlaugsdottir Edda Y. Gudmundsdottir Olafur Reykdal Arngrimur Thorlacius Inga Thorsdottir 2012-08-01T00:00:00Z https://doi.org/10.3402/fnr.v56i0.18476 https://doaj.org/article/925dc16b8bda4c52b6ecefe8b08cb037 EN eng Swedish Nutrition Foundation http://www.foodandnutritionresearch.net/index.php/fnr/article/view/18476/24086 https://doaj.org/toc/1654-6628 https://doaj.org/toc/1654-661X doi:10.3402/fnr.v56i0.18476 1654-6628 1654-661X https://doaj.org/article/925dc16b8bda4c52b6ecefe8b08cb037 Food & Nutrition Research, Vol 56, Iss 0, Pp 1-7 (2012) selenium diet micronutrient status adolescent girls fish consumption milk consumption Nutrition. Foods and food supply TX341-641 article 2012 ftdoajarticles https://doi.org/10.3402/fnr.v56i0.18476 2022-12-31T01:34:42Z Background/objectives: Significant changes have been reported in dietary habits and food availability in Iceland that would be expected to compromise selenium intake and status, especially among young people. These include substantial decreases in the consumption of fish and milk, as well as the selenium content of imported wheat. The aim of this study was to assess selenium in the diet and whole blood of adolescent girls, as well as define the most important foods contributing to intake and blood concentrations of selenium. Design: The subjects were 96 randomly selected girls, aged 16–20, who answered a validated food frequency questionnaire (FFQ) for dietary assessment. Selenium intake from each food group was calculated in µg/day. Blood samples were collected for measurement of whole blood selenium. Results: Mean dietary selenium was 51±25 µg/day. Milk/dairy products, including cheese, contributed 36±14% of total dietary selenium; fish 18±12%; and bread/cereal products 13±6%. Mean whole blood selenium was 117±12 µg/l (range 90–208); nearly 90% of subjects were above the optimal level of 100 µg/l. Fish and bread/cereal products were the only foods significantly correlated with selenium in blood (r=0.32; P = 0.002 and r=0.22; P = 0.04, respectively) while no correlation was found with milk and dairy products in spite of their greater contribution to total selenium intake. Conclusion: In this population of Icelandic adolescent girls, selenium intake and status seem acceptable. Judging from associations between intake and blood levels, fish and cereals may be the most important contributors to blood selenium. Article in Journal/Newspaper Iceland Directory of Open Access Journals: DOAJ Articles Food & Nutrition Research 56 1 18476 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
selenium diet micronutrient status adolescent girls fish consumption milk consumption Nutrition. Foods and food supply TX341-641 |
spellingShingle |
selenium diet micronutrient status adolescent girls fish consumption milk consumption Nutrition. Foods and food supply TX341-641 Ingibjorg Gunnarsdottir Laufey Steingrimsdottir Helga Gunnlaugsdottir Edda Y. Gudmundsdottir Olafur Reykdal Arngrimur Thorlacius Inga Thorsdottir Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland |
topic_facet |
selenium diet micronutrient status adolescent girls fish consumption milk consumption Nutrition. Foods and food supply TX341-641 |
description |
Background/objectives: Significant changes have been reported in dietary habits and food availability in Iceland that would be expected to compromise selenium intake and status, especially among young people. These include substantial decreases in the consumption of fish and milk, as well as the selenium content of imported wheat. The aim of this study was to assess selenium in the diet and whole blood of adolescent girls, as well as define the most important foods contributing to intake and blood concentrations of selenium. Design: The subjects were 96 randomly selected girls, aged 16–20, who answered a validated food frequency questionnaire (FFQ) for dietary assessment. Selenium intake from each food group was calculated in µg/day. Blood samples were collected for measurement of whole blood selenium. Results: Mean dietary selenium was 51±25 µg/day. Milk/dairy products, including cheese, contributed 36±14% of total dietary selenium; fish 18±12%; and bread/cereal products 13±6%. Mean whole blood selenium was 117±12 µg/l (range 90–208); nearly 90% of subjects were above the optimal level of 100 µg/l. Fish and bread/cereal products were the only foods significantly correlated with selenium in blood (r=0.32; P = 0.002 and r=0.22; P = 0.04, respectively) while no correlation was found with milk and dairy products in spite of their greater contribution to total selenium intake. Conclusion: In this population of Icelandic adolescent girls, selenium intake and status seem acceptable. Judging from associations between intake and blood levels, fish and cereals may be the most important contributors to blood selenium. |
format |
Article in Journal/Newspaper |
author |
Ingibjorg Gunnarsdottir Laufey Steingrimsdottir Helga Gunnlaugsdottir Edda Y. Gudmundsdottir Olafur Reykdal Arngrimur Thorlacius Inga Thorsdottir |
author_facet |
Ingibjorg Gunnarsdottir Laufey Steingrimsdottir Helga Gunnlaugsdottir Edda Y. Gudmundsdottir Olafur Reykdal Arngrimur Thorlacius Inga Thorsdottir |
author_sort |
Ingibjorg Gunnarsdottir |
title |
Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland |
title_short |
Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland |
title_full |
Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland |
title_fullStr |
Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland |
title_full_unstemmed |
Blood selenium levels and contribution of food groups to selenium intake in adolescent girls in Iceland |
title_sort |
blood selenium levels and contribution of food groups to selenium intake in adolescent girls in iceland |
publisher |
Swedish Nutrition Foundation |
publishDate |
2012 |
url |
https://doi.org/10.3402/fnr.v56i0.18476 https://doaj.org/article/925dc16b8bda4c52b6ecefe8b08cb037 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Food & Nutrition Research, Vol 56, Iss 0, Pp 1-7 (2012) |
op_relation |
http://www.foodandnutritionresearch.net/index.php/fnr/article/view/18476/24086 https://doaj.org/toc/1654-6628 https://doaj.org/toc/1654-661X doi:10.3402/fnr.v56i0.18476 1654-6628 1654-661X https://doaj.org/article/925dc16b8bda4c52b6ecefe8b08cb037 |
op_doi |
https://doi.org/10.3402/fnr.v56i0.18476 |
container_title |
Food & Nutrition Research |
container_volume |
56 |
container_issue |
1 |
container_start_page |
18476 |
_version_ |
1766038804486946816 |