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Discrepancy between Knowledge and Perceptions of Dietary Omega-3 Fatty Acid Intake Compared with the Omega-3 Index

Little is known about the relationship between perceptions of nutrient adequacy and biomarkers of nutrition status. This cross-sectional study of U.S. and German adults (n = 200; 18–80 years) compared dietary practices, knowledge, and beliefs of omega-3 fatty acids (O3-FA) with the omega-3 index (O3...

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Autores principales: Thuppal, Sowmyanarayanan V., von Schacky, Clemens, Harris, William S., Sherif, Katherine D., Denby, Nigel, Steinbaum, Suzanne R., Haycock, Bryan, Bailey, Regan L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5622690/
https://www.ncbi.nlm.nih.gov/pubmed/28837086
http://dx.doi.org/10.3390/nu9090930
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author Thuppal, Sowmyanarayanan V.
von Schacky, Clemens
Harris, William S.
Sherif, Katherine D.
Denby, Nigel
Steinbaum, Suzanne R.
Haycock, Bryan
Bailey, Regan L.
author_facet Thuppal, Sowmyanarayanan V.
von Schacky, Clemens
Harris, William S.
Sherif, Katherine D.
Denby, Nigel
Steinbaum, Suzanne R.
Haycock, Bryan
Bailey, Regan L.
author_sort Thuppal, Sowmyanarayanan V.
collection PubMed
description Little is known about the relationship between perceptions of nutrient adequacy and biomarkers of nutrition status. This cross-sectional study of U.S. and German adults (n = 200; 18–80 years) compared dietary practices, knowledge, and beliefs of omega-3 fatty acids (O3-FA) with the omega-3 index (O3-I), an erythrocyte-based biomarker associated with cardiovascular disease (CVD) risk. More than half of adults believed that O3-FAs are beneficial for heart and brain health and could correctly identify the food sources of O3-FA. However, the mean O3-I in the U.S. (4.3%) and Germany (5.5%) puts the majority of adults sampled (99%) in intermediate or high CVD-risk categories. More Americans were considered at high CVD-risk (40%) when compared with Germans (10%). In the U.S., but not Germany, women had a significantly higher O3-I than men (4.8% vs. 3.8%, p < 0.001). In the intermediate CVD-risk group, about one-third of adults in both countries (30% in the U.S. and 27% in Germany) believed their diet was adequate in O3-FA. Notably, mean O3-I concentrations did not significantly differ with dietary perceptions of adequacy. More adults in Germany (26%) than in the U.S. (10%) believed that dietary supplements are needed to achieve a balanced diet. In spite of adequate knowledge about food sources and a consistent belief that O3-FA are important for health, very few participants had O3-I concentrations in the range for CVD protection.
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spelling pubmed-56226902017-10-05 Discrepancy between Knowledge and Perceptions of Dietary Omega-3 Fatty Acid Intake Compared with the Omega-3 Index Thuppal, Sowmyanarayanan V. von Schacky, Clemens Harris, William S. Sherif, Katherine D. Denby, Nigel Steinbaum, Suzanne R. Haycock, Bryan Bailey, Regan L. Nutrients Article Little is known about the relationship between perceptions of nutrient adequacy and biomarkers of nutrition status. This cross-sectional study of U.S. and German adults (n = 200; 18–80 years) compared dietary practices, knowledge, and beliefs of omega-3 fatty acids (O3-FA) with the omega-3 index (O3-I), an erythrocyte-based biomarker associated with cardiovascular disease (CVD) risk. More than half of adults believed that O3-FAs are beneficial for heart and brain health and could correctly identify the food sources of O3-FA. However, the mean O3-I in the U.S. (4.3%) and Germany (5.5%) puts the majority of adults sampled (99%) in intermediate or high CVD-risk categories. More Americans were considered at high CVD-risk (40%) when compared with Germans (10%). In the U.S., but not Germany, women had a significantly higher O3-I than men (4.8% vs. 3.8%, p < 0.001). In the intermediate CVD-risk group, about one-third of adults in both countries (30% in the U.S. and 27% in Germany) believed their diet was adequate in O3-FA. Notably, mean O3-I concentrations did not significantly differ with dietary perceptions of adequacy. More adults in Germany (26%) than in the U.S. (10%) believed that dietary supplements are needed to achieve a balanced diet. In spite of adequate knowledge about food sources and a consistent belief that O3-FA are important for health, very few participants had O3-I concentrations in the range for CVD protection. MDPI 2017-08-24 /pmc/articles/PMC5622690/ /pubmed/28837086 http://dx.doi.org/10.3390/nu9090930 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Thuppal, Sowmyanarayanan V.
von Schacky, Clemens
Harris, William S.
Sherif, Katherine D.
Denby, Nigel
Steinbaum, Suzanne R.
Haycock, Bryan
Bailey, Regan L.
Discrepancy between Knowledge and Perceptions of Dietary Omega-3 Fatty Acid Intake Compared with the Omega-3 Index
title Discrepancy between Knowledge and Perceptions of Dietary Omega-3 Fatty Acid Intake Compared with the Omega-3 Index
title_full Discrepancy between Knowledge and Perceptions of Dietary Omega-3 Fatty Acid Intake Compared with the Omega-3 Index
title_fullStr Discrepancy between Knowledge and Perceptions of Dietary Omega-3 Fatty Acid Intake Compared with the Omega-3 Index
title_full_unstemmed Discrepancy between Knowledge and Perceptions of Dietary Omega-3 Fatty Acid Intake Compared with the Omega-3 Index
title_short Discrepancy between Knowledge and Perceptions of Dietary Omega-3 Fatty Acid Intake Compared with the Omega-3 Index
title_sort discrepancy between knowledge and perceptions of dietary omega-3 fatty acid intake compared with the omega-3 index
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5622690/
https://www.ncbi.nlm.nih.gov/pubmed/28837086
http://dx.doi.org/10.3390/nu9090930
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