Interesting paper in the latest AJCN: Petra LL Goyens, Mary E Spilker, Peter L Zock, Martijn B Katan, and Ronald P Mensink Conversion of alpha-linolenic acid in humans is influenced by the absolute amounts of alpha-linolenic acid and linoleic acid in the diet and not by their ratio Am J Clin Nutr 2006 84: 44-53 Abstract at: http://www.ajcn.org/cgi/content/abstract/84/1/44 (I did not copy/paste the abstract in this case, as the number of special characters in the text, makes tedious hand-correction necessary.) Tom Billings