Trans-fatty acids exacerbate essential fatty acid deficiency in experimental animals by interfering with the metabolism of linoleic (18colon;2n-6) and a-linolenic (18colon;3n-3) acids and, hence, the eicosanoid production. The interfering effect depends on the type of trans-fatty acid. The detrimental effect of trans-fatty acid, however, apparently disappears when dietary linoleic acid is sufficiently supplemented. Trans-fatty acids appear to disturb fetal growth and birth weight, possibly by the same mechanism.
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