The Evolution of Omega-3 to Omega-6 Ratios: From Ancestral Diets to Modern Imbalances.
DOI:
https://doi.org/10.63682/jns.v14i8S.10096Keywords:
Omega-3 fatty acids, Omega-6 fatty acids, Inflammation, Dietary imbalance, Chronic disease preventionAbstract
The balance between omega-3 and omega-6 fatty acids plays a crucial role in maintaining human health. Historically, ancestral diets provided a near-optimal omega-6 to omega-3 ratio of approximately 1:1 to 2:1, contributing to anti-inflammatory and cardioprotective effects. The rise of industrialization, modern diets, particularly in Western societies, has experienced a drastic shift, with ratios increasing to 15:1 or higher. This imbalance is largely driven by increased consumption of omega-6-rich vegetable oils and processed foods, coupled with decreased intake of omega-3 sources such as fatty fish, flaxseeds, and walnuts. A high omega-6 to omega-3 ratio is associated with elevated risks of chronic inflammation, cardiovascular diseases, obesity, metabolic syndrome, and cognitive decline. Comparative analysis with previous studies confirms the evolutionary and clinical significance of restoring a healthier balance. Interventions aimed at increasing omega-3 intake while reducing excessive omega-6 consumption are essential for mitigating these risks. Strategies include adopting dietary patterns similar to Mediterranean or traditional Asian diets, incorporating omega-3-rich foods, and minimizing the use of refined vegetable oils. Aligning modern nutrition with ancestral dietary ratios may offer an effective approach to enhancing long-term health outcomes and preventing non-communicable diseases. This review underscores the need for public health policies and individual dietary choices that support a balanced omega fatty acid profile
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