Cited by 162Fatty Acid Research and HealthEdible Oils Quality and AnalysisProbiotics and Fermented Foods

Effect of CLA supplementation on immune function in young healthy volunteers

Song, H-J, Grant, I, Rotondo, D, Mohede, I, Sattar, N, Heys, S D, Wahle, K W J·2005·European Journal of Clinical Nutrition

Abstract

Objectives This study investigated the effect of dietary CLA supplementation (3g/day; 50:50 mix of the two major isomers) on the immune system and plasma lipids and glucose of healthy human (male and female) volunteers.Design Double-blind, randomized, reference-controlled study. SUBJECT AND INTERVENTION: A total of 28 healthy male and female participants aged 25-50 y received either high oleic sunflower oil (reference) or 50% CLA 9-11 and 50% CLA 10-12 CLA isomers (50:50 CLA-triglyceride form). The treatments were given as supplements in soft-gel capsules providing a total 3 g (6 x 500 mg capsules) per day in treatment groups for 12 weeks. A 12-week washout period followed the intervention period.Results Levels of plasma IgA and IgM were increased (P < 0.05 and 0.01 respectively), while plasma IgE levels were decreased (P < 0.05). CLA supplementation also decreased the levels of the proinflammatory cytokines, TNF-alpha and IL-1beta (P < 0.05), but increased the levels of the anti-inflammatory cytokine, IL-10 (P < 0.05). Another aspect of immune function, delayed type hypersensitivity (DTH) response, was decreased during and after CLA supplementation (P < 0.05). However, plasma glucose, lipids, lymphocyte phenotypic results were not affected significantly by CLA.Conclusion This is the first study to show that CLA, a fatty acid naturally found in dairy and meat products, can beneficially affect immune function in healthy human volunteers.Sponsorship This study was supported by Loders-Croklaan, The Netherlands and SEERAD (Scottish Executive Environmental Rural and Agriculture Department).

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Crossref · 10.1038/sj.ejcn.1602102

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Authors
Song, H.-J., Grant, I., Rotondo, D., Mohede, I., Sattar, N., Heys, S. D., & Wahle, K. W. J.
Affiliations
  • University of Aberdeen (GB)
  • Robert Gordon University (GB)
  • University of Strathclyde (GB)
  • University of Glasgow (GB)
Corresponding author
Wahle, K W J
Venue
European Journal of Clinical Nutrition
Published
2005-01-12
Volume
59
Issue
4
Pages
508-517
ISSN
  • 0954-3007 (ISSN-L)
  • 1476-5640
OpenAlex
W2050217161
Cited by
162
References
35
Citations by year
2026: 2 · 2025: 4 · 2024: 8 · 2023: 6 · 2022: 5 · 2021: 5 · 2020: 5 · 2019: 9 · 2018: 4 · 2017: 11 · 2016: 4 · 2015: 7 · 2014: 6 · 2013: 13 · 2012: 11
FWCI
9.44
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Clinical Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Physical Sciences › Chemistry › Organic Chemistry › Edible Oils Quality and Analysis
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
Keywords
conjugated linoleic acid, dietary supplementation, immune function, plasma immunoglobulins, IgA, IgM, IgE, cytokines, TNF-α, IL-1β, IL-10, delayed-type hypersensitivity, inflammatory cytokines, anti-inflammatory cytokines, plasma lipids, plasma glucose, lymphocyte phenotype, healthy young adults
MeSH terms
Adult, Blood Glucose, C-Reactive Protein, Double-Blind Method, Female, Humans, Hypersensitivity, Delayed, Immunity, Immunoglobulins, Lipids, Lymphocytes, Male, Reference Values, Sex Factors, Time Factors, Cytokines, Dietary Supplements, Linoleic Acids, Conjugated

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