Influence of lifestyle and nutrition types on plasma lipid fatty acids composition in indigenous inhabitants of Russian European North

Two groups of indigenous people of Russian European North (inland reindeer breeders and urban citizens) with different lifestyle and nutrition types were studied. The goal of this study was to investigate a composition of fatty acid (FA) of total plasma lipids and correlations of lipid profile with nutrition. The results of the study showed more beneficial n-6/n-3 fatty acids ratio in reindeer breeders of Russian European North in comparison with city dwellers. It manifested as higher plasma n-3 PUFA levels in reindeer breeders, who had more fish in their ration. At the same time inland reindeer breeders showed, in comparison with urban citizens, higher palmitoleic acid levels and lower linoleic acid levels in blood total lipids pool. We assume that nutritional features and environmental conditions have the greatest effects on plasma lipid profile modification in indigenous inhabitants of Russian European North.