13C NMR spectra of liver triglyceride obtained from mouse fed standard chow (SC) and a mouse fed standard chow plus HFCS-55 formulation in the drinking water with the fructose component enriched to 20% with [U-13C]fructose (HS). The cluster of signals centered at 22.8 ppm representing the ω-2 signals of saturated fatty acids (SFA), oleic acid (OL), palmitoleic acid (PO) and linoleic acid (LO) and the signal from glycerol carbons 1 and 3 (Gly1,3) at 62.1 ppm are highlighted. In the HS spectrum, 13C-13C-spin coupled doublet signals from SFA (DSFA), OL (DOL), PO (DPO) and Gly1,3 (DGly1,3) are also indicated.