A new simplified method for analyzing the fatty acid profile in the blood( but without extracting the fat) has been verified in trials, to be as accurate as the traditional method using blood samples from the vein. In this new method the blood drops are only taken from the fingertips , see picture below, let to dry and then analyzed.
Full linearity in the gas chromatographic response of 11 individual fatty acids are maintained from C14 to C24 peaks with increasing sample size in the range 15-75 mcg. This new method for the analysis of fatty acids profile in the blood is approved for nutritional studies.
The fatty acids profile of blood lipids reflects dietary fat intake, and studies have shown that this profile is strongly related to health status. This is because the blood lipid profile represents the types of fats your body has to build into all cells and tissues, including cell membranes.
Thus, this new method for the analysis of fatty acids profile in the blood is applicable to nutritional studies. The 11 fatty acids are : Palmitic acid(PA), Stearic acid(SA), Oleic acid(OA), Linoleic(LA), Alpha-Linolenic acid(ALA), Gamma-linolenic acid(GLA), dihomoGamma-linolenic acid(DHGLA), Arachidonic acid(AA), Eicosapentaenoic acid(EPA), Docosapentaenoic acid(DPA), Docosahexaenoic acid(DHA).