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Nutrients. 2018 Oct 8;10(10). pii: E1460. doi: 10.3390/nu10101460.

Effect of Low Dose Docosahexaenoic Acid-Rich Fish Oil on Plasma Lipids and Lipoproteins in Pre-Menopausal Women: A Dose⁻Response Randomized Placebo-Controlled Trial.

Author information

1
School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia. sparkesc@gmail.com.
2
Illawarra Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia. sparkesc@gmail.com.
3
University of Adelaide, Adelaide, SA 5005, Australia. robert.gibson@adelaide.edu.au.
4
Faculty of Health, Deakin University, Geelong, VIC 3220, Australia. Andrew.sinclair@deakin.edu.au.
5
Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, VIC 3168, Australia. Andrew.sinclair@deakin.edu.au.
6
School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia. pelse@uow.edu.au.
7
Illawarra Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia. pelse@uow.edu.au.
8
School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia. bmeyer@uow.edu.au.
9
Illawarra Medical Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia. bmeyer@uow.edu.au.

Abstract

Omega-3 long chain polyunsaturated fatty acid (n-3 LCPUFA) supplementation has been shown to improve plasma lipid profiles in men and post-menopausal women, however, data for pre-menopausal women are lacking. The benefits of intakes less than 1 g/day have not been well studied, and dose⁻response data is limited. The aim of this study was to determine the effect of low doses of docosahexaenoic acid (DHA)-rich tuna oil on plasma triglyceride (TG) lowering in pre-menopausal women, and investigate if low dose DHA-rich tuna oil supplementation would increase the low-density lipoprotein (LDL) and high-density lipoprotein (HDL) particle sizes. A randomized, double-blind, placebo-controlled trial was conducted, in which 53 healthy pre-menopausal women with mildly elevated plasma TG levels consumed 0, 0.35, 0.7, or 1 g/day n-3 LCPUFA as HiDHA™ tuna oil or placebo (Sunola oil) capsules for 8 weeks. Supplementation with 1 g/day n-3 LCPUFA, but not lower doses, reduced plasma TG by 23% in pre-menopausal women. This was reflected in a dose-dependent reduction in very-low-density lipoprotein (VLDL)-TG (R² = 0.20, p = 0.003). A weak dose-dependent shift in HDL (but not LDL) particle size was identified (R² = 0.05, p = 0.04). The results of this study indicate that DHA-rich n-3 LCPUFA supplementation at a dose of 1 g/day is an effective TG-lowering agent and increases HDL particle size in pre-menopausal women.

KEYWORDS:

DHA; lipoproteins; plasma lipids; premenopausal women

PMID:
30297663
PMCID:
PMC6212906
DOI:
10.3390/nu10101460
[Indexed for MEDLINE]
Free PMC Article

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