Discrepancy between knowledge and perceptions of dietary omega-3 fatty acid intake compared with the omega-3 index

Sowmyanarayanan V. Thuppal, Clemens Von Schacky, William S. Harris, Katherine D. Sherif, Nigel Denby, Suzanne R. Steinbaum, Bryan Haycock, Regan L. Bailey

Research output: Research - peer-reviewArticle

Abstract

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.

LanguageEnglish (US)
Article number930
JournalNutrients
Volume9
Issue number9
DOIs
StatePublished - Sep 1 2017
Externally publishedYes

Fingerprint

Omega-3 Fatty Acids
Cardiovascular Diseases
omega-3 fatty acids
cardiovascular diseases
Germany
Food
Biomarkers
Diet
Health
biomarkers
diet
Erythrocyte Indices
Dietary Supplements
Nutritional Status
Cross-Sectional Studies
Brain
risk groups
cross-sectional studies
nutritional status
dietary supplements

Keywords

  • Biomarker
  • Dietary perception
  • Fatty acids
  • Omega-3 index

ASJC Scopus subject areas

  • Food Science

Cite this

Thuppal, S. V., Von Schacky, C., Harris, W. S., Sherif, K. D., Denby, N., Steinbaum, S. R., ... Bailey, R. L. (2017). Discrepancy between knowledge and perceptions of dietary omega-3 fatty acid intake compared with the omega-3 index. Nutrients, 9(9), [930]. DOI: 10.3390/nu9090930

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.

In: Nutrients, Vol. 9, No. 9, 930, 01.09.2017.

Research output: Research - peer-reviewArticle

Thuppal, SV, Von Schacky, C, Harris, WS, Sherif, KD, Denby, N, Steinbaum, SR, Haycock, B & Bailey, RL 2017, 'Discrepancy between knowledge and perceptions of dietary omega-3 fatty acid intake compared with the omega-3 index' Nutrients, vol 9, no. 9, 930. DOI: 10.3390/nu9090930
Thuppal SV, Von Schacky C, Harris WS, Sherif KD, Denby N, Steinbaum SR et al. Discrepancy between knowledge and perceptions of dietary omega-3 fatty acid intake compared with the omega-3 index. Nutrients. 2017 Sep 1;9(9). 930. Available from, DOI: 10.3390/nu9090930
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. In: Nutrients. 2017 ; Vol. 9, No. 9.
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