Essential fatty acids as determinants of lipid requirements in infants, children and adults
1999
Uauy, R. | Mena, P. | Valenzuela, A.
Essential fatty acids (EFA) are the indispensable component of the lipid supply beyond the provision of energy as a fuel for oxidation. They serve as dietary precursors for the formation of prostanoids and other eicosanoids thus are of great significance in health and modulation of disease conditions. Eicosanoids are powerful autocrine and paracrine regulators of cell and tissue functions: thrombocyte aggregation, inflammatory reactions and leukocyte functions, vasoconstriction and vasodilatation, blood pressure, bronchial constriction, and uterine contraction. Recent attention has focused on the effect of n-3 and n-6 long chain EFAs in normal fetal development. Results from human infant studies suggest that n-3 fatty acids are needed for optimal development of visual and brain function. Human milk is the best and only time proven source of fat and dietary essential fatty acids for infant feeding. International recommendations for n-3 and n-6 EFA dietary intake are reviewed and suggested intakes for long chain EFAs are provided.
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