Cited by 152Fatty Acid Research and HealthAquaculture Nutrition and GrowthLipid metabolism and biosynthesis

Dietary α-Linolenic Acid, EPA, and DHA Have Differential Effects on LDL Fatty Acid Composition but Similar Effects on Serum Lipid Profiles in Normolipidemic Humans

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Egert, Sarah, Kannenberg, Frank, Somoza, Veronika, Erbersdobler, Helmut F., Wahrburg, Ursel·2009·The Journal of Nutrition

Abstract

Our aim was to study the effects of increased dietary intake of alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), or docosahexaenoic acid (DHA) on serum lipids and LDL fatty acid compositions. To this end, a controlled parallel study was conducted in 74 healthy normolipidemic men and women aged 19-43 y. Participants were randomly assigned to 1 of 3 interventions and consumed a total intake of 4.4 g/d ALA (ALA group), 2.2 g/d EPA (EPA group), and 2.3 g/d DHA (DHA group) for 6 wk. Fatty acid ethyl esters were incorporated into margarines, which replaced the participant's normal spread. The ALA, EPA, or DHA intake led to a significant enrichment of the LDL with the respective (n-3) fatty acid. In addition, LDL EPA contents in the ALA group increased by 36% (P < 0.05) with no changes in LDL DHA. The EPA intervention led to an additional enrichment with DHA (24%; P < 0.001), whereas the DHA intervention further increased the amount of EPA (249%; P < 0.001). ALA, EPA, or DHA intake did not affect fasting serum concentrations of total and LDL cholesterol, but fasting serum triacylglycerol concentrations significantly decreased in the EPA (-0.14 mmol/L) and DHA (-0.30 mmol/L) interventions and also in the ALA intervention (-0.17 mmol/L). DHA intake significantly increased serum HDL cholesterol, whereas no changes were found with ALA or EPA intake. In conclusion, the present data support the hypothesis that isolated dietary ALA, EPA, and DHA intakes lead to differential enrichment in LDL due to interconversion. Moderate amounts of ALA, EPA, and DHA are effective in improving lipid profiles of normolipidemic humans.

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Crossref · 10.3945/jn.108.103861

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Authors
Egert, S., Kannenberg, F., Somoza, V., Erbersdobler, H. F., & Wahrburg, U.
Affiliations
  • Christian-Albrechts-Universität zu Kiel (DE)
  • University of Münster (DE)
  • University of Wisconsin–Madison (US)
  • FH Münster University of Applied Sciences (DE)
Corresponding author
Egert, Sarah
Venue
The Journal of Nutrition
Publisher
Elsevier BV
Published
2009-05
Volume
139
Issue
5
Pages
861-868
ISSN
0022-3166 (ISSN-L)
OpenAlex
W2172044633
Cited by
152
References
54
Citations by year
2026: 2 · 2025: 3 · 2024: 2 · 2023: 8 · 2022: 12 · 2021: 8 · 2020: 4 · 2019: 7 · 2018: 12 · 2017: 8 · 2016: 12 · 2015: 13 · 2014: 16 · 2013: 10 · 2012: 11
FWCI
11.26
Type
journal article
Language
en
Open access
Locations
  • Journal of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
alpha-linolenic acid, eicosapentaenoic acid, docosahexaenoic acid, omega-3 fatty acids, LDL cholesterol, lipid profile, triglycerides, HDL cholesterol, fatty acid ethyl esters, margarine, dietary fatty acid supplementation
MeSH terms
Olive Oil, Adult, Energy Intake, Cholesterol, Docosahexaenoic Acids, Fatty Acids, Female, Humans, Lipids, Cholesterol, HDL, Lipoproteins, LDL, Cholesterol, LDL, Male, Margarine, Plant Oils, Triglycerides, Eicosapentaenoic Acid, alpha-Linolenic Acid

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