The role of omega-3 polyunsaturated fatty acid supplementation in the management of type 2 diabetes mellitus: A narrative review

C. Itsiopoulos*, W. Marx, H. L. Mayr, O. A. Tatucu-Babet, S. R. Dash, E. S. George, G. L. Trakman, J. T. Kelly, C. J. Thomas, L. Brazionis

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

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Abstract

Background: Type 2 Diabetes Mellitus (T2DM) poses a significant health and financial burden to individuals and healthcare systems. Omega-3 polyunsaturated fatty acids (PUFA) possess numerous properties (e.g. anti-inflammatory, anti-thrombotic, anti-lipidemic) that may be beneficial in the management of T2DM and its complications. Methods: In this narrative review, we discuss the potential mechanisms, clinical evidence-base, and practical considerations regarding the use of omega-3 PUFA supplementation for the management of glycaemic control and common comorbid conditions, including diabetic nephropathy and retinopathy, liver disease, cognition and mental health, and cardiometabolic disease. Results/conclusion: Omega-3 PUFA supplementation is generally well-tolerated and does not appear to be contraindicated for patients on anticoagulant therapy; however, uncertainty persists regarding the purity and stability of commercial omega-3 PUFA products. Despite promising animal studies, the current clinical evidence for the use of omega-3 supplementation for the management of T2DM and associated conditions is both limited and conflicting. Results from existing clinical trials do not support the use of omega-3 PUFA for glycaemic control and there are limited studies in T2DM populations to support the use of omega-3 PUFAs for associated complications of diabetes. Possible contributors to the conflicting evidence base are study design issues, such as inadequate intervention period, sample size, omega 3 supplement dose, variations in the EPA to DHA ratio and clinical heterogeneity among diabetic populations.

Original languageEnglish
Pages (from-to)42-51
Number of pages10
JournalJournal of Nutrition and Intermediary Metabolism
Volume14
Early online date12 Mar 2018
DOIs
Publication statusPublished - 1 Dec 2018

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    Itsiopoulos, C., Marx, W., Mayr, H. L., Tatucu-Babet, O. A., Dash, S. R., George, E. S., Trakman, G. L., Kelly, J. T., Thomas, C. J., & Brazionis, L. (2018). The role of omega-3 polyunsaturated fatty acid supplementation in the management of type 2 diabetes mellitus: A narrative review. Journal of Nutrition and Intermediary Metabolism, 14, 42-51. https://doi.org/10.1016/j.jnim.2018.02.002