A systematic review on the role of alpha linolenic acid (ALA) in combating non-communicable diseases (NCDs)
ISSN: 0034-6659
Article publication date: 11 May 2022
Issue publication date: 7 February 2023
Abstract
Purpose
The purpose of this paper is to highlight the health benefits, functional role of alpha linolenic acid (ALA) in combating diet-related non-communicable diseases, absorption, metabolism, toxicity and extraction of ALA.
Design/methodology/approach
A wide range of publications were identified through electronic databases (Google Scholar, PubMed, SciELO, ScienceDirect, SpringerLink and ResearchGate) on the basis of different keywords such as dietary sources, functional role, metabolism, beneficial effects, toxicity and extraction.
Findings
ALA, an omega-3 fatty acid, is commonly found in dietary sources such as flaxseeds, rapeseed, pumpkin seeds, walnuts and fatty fish, with flaxseed being the richest among all the sources. Several convincing evidences depict the functional role of ALA in ameliorating cardiovascular functions, regulating systolic and diastolic blood pressure and improving neurological disorders, thus possessing anti-arrhythmic as well as anti-inflammatory properties. Its promising effect is also noticed on post-menopausal symptoms like hot flashes, insomnia and headache as well as in balancing the levels of sex hormones in women suffering from PCOS. Furthermore, it was also responsible for reducing the concentrations of C-reactive protein and interleukin-6. Its excess consumption may lead to gastrointestinal disturbances such as flatulence and bloating. Various extraction techniques, namely, medium pressure liquid chromatography, silver silica gel chromatography, silver ion-solid phase extraction and silver ion-high pressure liquid chromatography are used for the extraction of ALA from its sources.
Originality/value
This is a novel review which will provide a brief overview of dietary sources, functional role, absorption and metabolism, health benefits, toxicity and extraction of ALA.
Keywords
Acknowledgements
The authors are thankful to Lovely Professional University for providing the necessary facilities, which were used for the preparation of manuscript.
Citation
Gogna, S., Kaur, J., Sharma, K., Bhadariya, V., Singh, J., Kumar, V., Rasane, P. and Vipasha, V. (2023), "A systematic review on the role of alpha linolenic acid (ALA) in combating non-communicable diseases (NCDs)", Nutrition & Food Science, Vol. 53 No. 2, pp. 221-233. https://doi.org/10.1108/NFS-01-2022-0023
Publisher
:Emerald Publishing Limited
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