Tagged As: mediterranean style diet
Question:
Notice the studies compare w3's against some oil like olive oil,not against no oil at all. That's why all the mays. Not arguing the benefits of fish, just the bias in the studies. Any ideas with mediterranean style diet ?
Answer:
This explanation about the benefits of Mediterranean diet could possibly be of some interest: Omega 3s and not Olive oil may explain benefits of Mediterranean diet http://www.foodandhealth.com/cpecourses/omega3.shtml#_Toc481486156 The protective effect of a Mediterranean-style diet may be due more to increased omega 3s than to an increase in monounsaturated fat.[20] A 46-month follow-up of the Lyon Diet Heart Study showed a significant reduction in both CVD and all cause mortality. There were 24 deaths/100 patients in the control and this reduced to 14 deaths/100 patients in the experimental group.[21] Since these trials showed relatively modest effects on blood lipids or blood pressure, it seems likely that most of the protective effects of a Mediterranean-style diet may be due more to stabilization of myocardial cell membranes and/or a reduced tendency of blood to clot and/or improved endothelial function rather than to decreased atherosclerosis. This makes it unlikely that consuming more olive oil is a likely explanation for reduced death rate from CVD seen in Mediterranean countries. A secondary prevention trial of people who already had had a heart attack lends support to the importance of omega-3s in preventing IHD mortality. In this study, a supplement of 1 g of omega 3s daily in the form of fish oils significantly reduced both CVD and overall mortality compared to a placebo.[22] Research in animals has demonstrated that omega-3s help to stabilize heart muscle cell membranes and alter electrophysiological events by modulating sodium and calcium channels, which may be how they prevent fatal cardiac arrhythmias. If so, making sure Americans consume at least 1% of their total calories as omega-3s may help to dramatically reduce the 250,000 or so sudden cardiac deaths each year caused by fatal arrhythmias.[23] References [20] de Lorgeril M, Renaud S, Mamelle N, et al. Mediterranean alpha-linolenic acid-rich diet in secondary prevention of coronary artery heart disease. Lancet 1994;343:1454-9 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&... [21] de Lorgeril M, Salen P, Martin JL, et al Mediterranean diet, traditional risk factors, and the rate of cardiovascular complications after myocardial infraction: The final report of the Lyon diet heart study. Circulation 1999;99:779-85 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&... [22] GISSI-Prevenzione Investigators. Dietary supplementation with n-3 polyunsaturated fatty acids and vitamin E after myocardial infarction: result of the GISSI-Prevenzione trial. Lancet 1999;354: 447-66 http://www.thelancet.com/newlancet/reg/issues/vol354no9177/body.artic... http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&... [23] Kang JX, Leaf A. Prevention of fatal cardiac arrhythmias by polyunsaturated fatty acids. Am J Clin Nutr 2000;71(suppl):202S-7S http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&...
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