Guest guest Posted March 26, 2002 Report Share Posted March 26, 2002 Hi , You wrote that you have a study that showed a 6% and 4% conversion rate of LNA and another that showed that only .2% of plasma LNA is converted to EPA and DHA. I asked for a reference or perhaps a copy of those studies yesterday. Perhaps you missed my post. Could you post the abstracts, or at least provide some citations so I can find them myself? Thank you Suze Fisher Web Design & Development http://www.suscom-maine.net/~cfisher/ mailto:s.fisher22@... Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 26, 2002 Report Share Posted March 26, 2002 Whups! I could have sworn I posted them already. I remember cutting and pasting them an everything. I must be losing my mind and I don't even have a recent childbirth to blame! Anyways, here they are: *The plant based versions of omega-3 fatty acids are not biologically active. Only 0.2% of the plant form (LNA) in blood plasma ends up being converted to the " fish oil " forms found in animal products (130). This trait is shared with other omnivorous and carnivorous species and is a result of animal products being a staple in the diet. Vegetarian species make the conversion readily. * The absorption of omega-3's is increased substantially when consumed with ample saturated fat(131) * Fish are not the only source of " fish oils " . Grass-fed animals have up to 10 times more omega-3 fatty acids, in the more beneficial " fish oil " form, than grain fed animals(132). The same thing applies to eggs from pastured chickens(133). 130. Pawlosky RJ, Hibbeln JR, Novotny JA, Salem N Jr. Physiological compartmental analysis of alpha-linolenic acid metabolism in adult humans. J Lipid Res 2001 Aug;42(8):1257-65 131. Lawson LD, BG. Absorption of eicosapentaenoic acid and docosahexaenoic acid from fish oil triacylglycerols or fish oil ethyl esters co-ingested with a high-fat meal. Biochem Biophys Res Commun 1988 Oct 31;156(2):960-3 132. Duckett, S. K., D. G. Wagner, et al. (1993). " Effects of time on feed on beef nutrient composition. " J Anim Sci 71(8): 2079-88. 10. -Bote, C. J., R.Sanz Arias, A.I. Rey, A. Castano, B. Isabel, J. Thos (1998). " Effect of free-range feeding on omega-3 fatty acids and alpha-tocopherol content and oxidative stability of eggs. " Animal Feed Science and Technology 72: 33-40. I'll have to dig up the 6% and 4% EPA/DHA conversion ref later on today. And remind me again if I forget Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 26, 2002 Report Share Posted March 26, 2002 ----- Original Message ----- From: " justinbond " <justin_bond@...> > *The plant based versions of omega-3 fatty acids are not biologically > active. Only 0.2% of the plant form (LNA) in blood plasma ends up > being converted to the " fish oil " forms found in animal products > (130). This trait is shared with other omnivorous and carnivorous > species and is a result of animal products being a staple in the > diet. By " staple in the diet, " does that refer to individuals, or to species? That is, if a human eats plant foods exclusively, will his body undergo some physiological adjustment that allows him to utilize omega-3s in plants more efficiently, or is it only herbivorous species which can do this? Berg Quote Link to comment Share on other sites More sharing options...
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