N-3 Polyunsaturated Fatty Acids May Affect the Course of COVID-19
Overview
Affiliations
The highly infectious coronavirus disease (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is a new coronavirus that has been spreading since late 2019 and has caused millions of deaths worldwide. COVID-19 continues to spread rapidly worldwide despite high vaccination coverage; therefore, it is crucial to focus on prevention. Most patients experience only mild symptoms of COVID-19. However, in some cases, serious complications can develop mainly due to an exaggerated immune response; that is, a so-called cytokine storm, which can lead to acute respiratory distress syndrome, organ failure, or, in the worst cases, death. N-3 polyunsaturated fatty acids and their metabolites can modulate inflammatory responses, thus reducing the over-release of cytokines. It has been hypothesized that supplementation of n-3 polyunsaturated fatty acids could improve clinical outcomes in critically ill COVID-19 patients. Some clinical trials have shown that administering n-3 polyunsaturated fatty acids to critically ill patients can improve their health and shorten the duration of their stay in intensive care. However, previous clinical studies have some limitations; therefore, further studies are required to confirm these findings.
Laro J, Xue B, Zheng J, Ness M, Perlman S, McCall L iScience. 2025; 28(2):111727.
PMID: 39995861 PMC: 11848469. DOI: 10.1016/j.isci.2024.111727.
Polyunsaturated Fatty Acids as Potential Treatments for COVID-19-Induced Anosmia.
Wang Y, Lin C, Huang C Biomedicines. 2024; 12(9).
PMID: 39335598 PMC: 11428228. DOI: 10.3390/biomedicines12092085.
Yue H, Zeng J, Wang Y, Deng M, Peng W, Tan X Asia Pac J Clin Nutr. 2023; 32(3):308-320.
PMID: 37789651 PMC: 11090385. DOI: 10.6133/apjcn.202309_32(3).0002.
Zheng P, Ma J, Yang J, Liao B, Cheng Z, Xue M Front Immunol. 2023; 14:1079960.
PMID: 36891316 PMC: 9986310. DOI: 10.3389/fimmu.2023.1079960.