1. A composition comprising at least one long chain polyunsaturated fatty acid (LC-PUFA), at least one probiotic and oligosaccharide mixture, wherein said mixture comprises at least one oligosaccharide of Galβ1, 4GlcNAcβ1, 3Galβ1, 4Glc (or lacto-N -neotetraozy or LNnT) and Galβ1, 3GlcNAcβ1, 3Galβ1, 4Glc (or lacto-N-tetraose or LNT), at least one N-acetylated oligosaccharide LNnT different and LNT, at least one sialylated oligosaccharide and at least one neutral oligosaccharide for use in increasing the sensitivity of insulin and / or decreasing insulinorezistentnosti.2. Composition according to claim. 1, further comprising Fucα1, 2Galβ1, 4Glc (2-fukozillaktozu or FL) .3. Composition according to claim. 1 and / or 2, wherein said oligosaccharide mixture contains at least one oligosaccharide of Galβ1, 4GlcNAcβ1, 3Galβ1, 4Glc (or lacto-N-neotetraose or LNnT) and Galβ1, 3GlcNAcβ1, 3Galβ1, 4Glc (or lacto -N-tetraose or LNT), at least one N-acetylated oligosaccharide selected from the group consisting of GalNAcα1, 3Galβ1, 4Glc (= 3GalNAc-Lac = N-acetyl-galactosamine, lactose), Galβ1, 4GlcNAcβ1, 3Galβ1 , 4Glc, Galβ1, 3GlcNAcβ1, 3Galβ1, 4Glc and Galβ1, 6GalNAcα1, 3Galβ1, 4Glc (= 6Gal-3GalNAc-lac = galactosyl-N-acetyl-galactosamine, lactose), at least one sialylated oligosaccharide selected from the group with toyaschey of NeuAcα2, 3Galβ1, 4Glc (= 3-sialyllactose) and NeuAcα2, 6Gaβ1, 4Glc (= 6-sialyllactose), and at least one neutral oligosaccharide selected from the group consisting of Galβ1, 6Gal (= β1,6 -digalaktozida) Galβ1, 6Galβ1, 4Glc (= 6Gal-lac) Galβ1, 6Galβ1, 6Glc Galβ1, 3Galβ1, 3Glc Galβ1, 3Galβ1, 4Glc (= 3Gal-lac) Galβ1, 6Galβ1, 6Galβ1, 4Glc (= 6 , 6-diGal-lac) Galβ1, 6Galβ1, 3Galβ1, 4Glc (= 6 , 3-diGal-lac) Galβ1, 3Galβ1, 6Galβ1, 4Glc (= 3 , 6-diGal-lac) Galβ1, 3Galβ1, 3Galβ1, 4Glc (= 3 , 3-diGal-lac) Galβ1, 4Galβ1, 4Glc (= 4 Gal-lac) and Galβ1, 4Galβ1, 4Galβ1, 4Glc (= 4, 4-d1. Композиция, содержащая по меньшей мере одну длинноцепочечную полиненасыщенную жирную
