Algal Docosahexaenoic Acid Affects Plasma Lipoprotein Particle Size Distribution in Overweight and Obese Adults
Open accessAbstract
Fish oils containing both EPA and DHA have been shown to have beneficial cardiovascular effects, but less is known about the independent effects of DHA. This study was designed to examine the effects of DHA on plasma lipid and lipoprotein concentrations and other biomarkers of cardiovascular risk in the absence of weight loss. In this randomized, controlled, double-blind trial, 36 overweight or obese adults were treated with 2 g/d of algal DHA or placebo for 4.5 mo. Markers of cardiovascular risk were assessed before and after treatment. In the DHA-supplemented group, the decrease in mean VLDL particle size (P ≤ 0.001) and increases in mean LDL (P ≤ 0.001) and HDL (P ≤ 0.001) particle sizes were significantly greater than changes in the placebo group. DHA supplementation also increased the concentrations of large LDL (P ≤ 0.001) and large HDL particles (P = 0.001) and decreased the concentrations of small LDL (P = 0.009) and medium HDL particles (P = 0.001). As calculated using NMR-derived data, DHA supplementation reduced VLDL TG (P = 0.009) and total TG concentrations (P = 0.006). Plasma IL-10 increased with DHA supplementation to a greater extent than placebo (P = 0.021), but no other significant changes were observed in glucose metabolism, insulin sensitivity, blood pressure, or markers of inflammation with DHA. In summary, DHA supplementation resulted in potentially beneficial changes in some markers of cardiometabolic risk, whereas other markers were unchanged.
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One study reported using standard methods for estimating LDL-C, and one did not report its method.
“One study reported using “standard” methods for estimating LDL-C (36) and one did not report its method (26).”
Algal DHA extracts can produce other cardiovascular protective effects in humans by altering plasma lipoproteins at reasonably small doses (2 g algal DHA day−1 over 4.5 months).
“Algal DHA extracts can produce other cardiovascular protective effects in humans by altering plasma lipoproteins at reasonably small doses (2 g algal DHA day−1 over 4.5 months: Neff et al. 2011).”
From Algae as nutritional and functional food sources: revisiting our understanding. (2017) · cites this paper as Neff et al. 2011
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- Authors
- Neff, L. M., Culiner, J., Cunningham-Rundles, S., Seidman, C., Meehan, D., Maturi, J., Wittkowski, K. M., Levine, B., & Breslow, J. L.
- Affiliations
- Rockefeller University (US)
- Rockefeller University Hospital (US)
- Corresponding author
- Breslow, Jan L.
- Venue
- The Journal of Nutrition
- Publisher
- Elsevier BV
- Published
- 2011-02
- Volume
- 141
- Issue
- 2
- Pages
- 207-213
- ISSN
- 0022-3166 (ISSN-L)
- PMC
- PMC3021440
- OpenAlex
- W2166486864
- Cited by
- 121
- References
- 52
- Citations by year
- 2026: 3 · 2025: 4 · 2024: 14 · 2023: 8 · 2022: 7 · 2021: 10 · 2020: 5 · 2019: 7 · 2018: 5 · 2017: 6 · 2016: 13 · 2015: 9 · 2014: 8 · 2013: 8 · 2012: 10
- FWCI
- 6.67
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Journal of Nutrition (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health (2m01rr000102-41)
- National Center for Research Resources (M01-RR000102, UL1RR024143, KL2RR024142)
- Topics
- Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
- Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
- Keywords
- docosahexaenoic acid, algal oil, omega-3 supplementation, lipoprotein particle size, VLDL, low-density lipoprotein, HDL cholesterol, triglycerides, cardiovascular risk, overweight, obesity, IL-10, inflammation, cardiometabolic risk
- MeSH terms
- Adult, Rhodophyta, Cardiovascular Diseases, Dietary Fats, Docosahexaenoic Acids, Double-Blind Method, Female, Humans, Lipoproteins, Male, Middle Aged, Magnetic Resonance Spectroscopy, Obesity, Particle Size, Plant Extracts, Risk Factors, Triglycerides, Interleukin-10, Dietary Supplements, Young Adult
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