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The Linoleic Acid: Dihomo-γ-Linolenic Acid Ratio (LA:DGLA)—An Emerging Biomarker of Zn Status

College of Science and Engineering, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia
Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, 11000 Belgrade, Serbia
USDA/ARS (US Department of Agriculture, Agricultural Research Service), Robert W. Holley Centre for Agriculture and Health, Cornell University, Ithaca, NY 14853, USA
Author to whom correspondence should be addressed.
Nutrients 2017, 9(8), 825;
Received: 28 June 2017 / Revised: 27 July 2017 / Accepted: 28 July 2017 / Published: 1 August 2017
(This article belongs to the Special Issue Dietary Zn and Human Health)
Zinc (Zn) deficiency is a common aliment predicted to affect 17% of the world’s population. Zinc is a vital micronutrient used for over 300 enzymatic reactions and multiple biochemical and structural processes in the body. Although whole blood, plasma, and urine zinc decrease in severe zinc deficiency, accurate assessment of zinc status, especially in mild to moderate deficiency, is difficult as studies with these biomarkers are often contradictory and inconsistent. Hence, as suggested by the World Health Organization, sensitive and specific biological markers of zinc status are still needed. In this review, we provide evidence to demonstrate that the LA:DGLA ratio (linoleic acid:dihomo-γ-linolenic acid ratio) may be a useful additional indicator for assessing Zn status more precisely. However, this biomarker needs to be tested further in order to determine its full potential. View Full-Text
Keywords: biomarker; Zn; LA:DGLA; Zn status; fatty acid biomarker; Zn; LA:DGLA; Zn status; fatty acid
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Knez, M.; Stangoulis, J.C.R.; Glibetic, M.; Tako, E. The Linoleic Acid: Dihomo-γ-Linolenic Acid Ratio (LA:DGLA)—An Emerging Biomarker of Zn Status. Nutrients 2017, 9, 825.

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