BACKGROUND: Dietary advice, including modification of dietary fat quality, is the basis of treatment of diabetes, but there is some uncertainty about the optimal amount of polyunsaturated fatty acids of the n-6 (omega-6) and n-3 (omega-3) series. OBJECTIVE: The objective was to compare the effects of diets rich in n-3 or n-6 fatty acids on glucose and lipoprotein metabolism in type 2 diabetes. DESIGN: In a crossover study during 2 consecutive 3.5-wk periods, the participants were provided diets with identical nutrient compositions containing either a high proportion of n-3 (n-3 diet) or n-6 (n-6 diet) fatty acids through the inclusion of fatty fish or lean fish and fat containing linoleic acid, respectively. RESULTS:Blood glucose concentrations at fasting and during the day were lower with the n-6 than with the n-3 diet (P = 0.009 and P = 0.029, respectively), and the area under the insulin curve during the day was significantly higher (P = 0.03) with the n-6 diet. Both diets showed similar effects on insulin sensitivity and plasminogen activator inhibitor 1 concentrations. The reductions in VLDLs and serum apolipoprotein B concentrations were more pronounced after the n-3 diet. CONCLUSIONS: The risk related to the moderately higher blood glucose concentrations with the n-3-enriched diet may be counteracted by positive effects with regard to lipoprotein concentrations. An increase in long-chain n-3 fatty acids from fatty fish, and of n-6 fatty acids from linoleic acid, may be recommended for patients with type 2 diabetes.
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BACKGROUND: Dietary advice, including modification of dietary fat quality, is the basis of treatment of diabetes, but there is some uncertainty about the optimal amount of polyunsaturated fatty acids of the n-6 (omega-6) and n-3 (omega-3) series. OBJECTIVE: The objective was to compare the effects of diets rich in n-3 or n-6 fatty acids on glucose and lipoprotein metabolism in type 2 diabetes. DESIGN: In a crossover study during 2 consecutive 3.5-wk periods, the participants were provided diets with identical nutrient compositions containing either a high proportion of n-3 (n-3 diet) or n-6 (n-6 diet) fatty acids through the inclusion of fatty fish or lean fish and fat containing linoleic acid, respectively. RESULTS:Blood glucose concentrations at fasting and during the day were lower with the n-6 than with the n-3 diet (P = 0.009 and P = 0.029, respectively), and the area under the insulin curve during the day was significantly higher (P = 0.03) with the n-6 diet. Both diets showed similar effects on insulin sensitivity and plasminogen activator inhibitor 1 concentrations. The reductions in VLDLs and serum apolipoprotein B concentrations were more pronounced after the n-3 diet. CONCLUSIONS: The risk related to the moderately higher blood glucose concentrations with the n-3-enriched diet may be counteracted by positive effects with regard to lipoprotein concentrations. An increase in long-chain n-3 fatty acids from fatty fish, and of n-6 fatty acids from linoleic acid, may be recommended for patients with type 2 diabetes.
Authors: Matthew F Muldoon; Kirk I Erickson; Bret H Goodpaster; John M Jakicic; Sarah M Conklin; Akira Sekikawa; Jeffrey K Yao; Stephen B Manuck Journal: J Nutr Date: 2013-07-24 Impact factor: 4.798
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Authors: K Kavanagh; D M Flynn; K A Jenkins; M D Wilson; F H Chilton Journal: Prostaglandins Leukot Essent Fatty Acids Date: 2013-05-07 Impact factor: 4.006
Authors: Alison B Evert; Jackie L Boucher; Marjorie Cypress; Stephanie A Dunbar; Marion J Franz; Elizabeth J Mayer-Davis; Joshua J Neumiller; Robin Nwankwo; Cassandra L Verdi; Patti Urbanski; William S Yancy Journal: Diabetes Care Date: 2013-10-09 Impact factor: 19.112
Authors: Maria Lankinen; Marjukka Kolehmainen; Tiina Jääskeläinen; Jussi Paananen; Laura Joukamo; Antti J Kangas; Pasi Soininen; Kaisa Poutanen; Hannu Mykkänen; Helena Gylling; Matej Orešič; Matti Jauhiainen; Mika Ala-Korpela; Matti Uusitupa; Ursula Schwab Journal: PLoS One Date: 2014-02-28 Impact factor: 3.240