- VLDL kinetics (modelization of 2H5 incorporation into VLDL-triglycerides. Sub-study A2: A second group of 7 subjects will be studied on three occasions according to the same protocol, except that the test meal will not include MCT and that long-chain triglycerides (LCT) will be labeled with 13C3 triolein. The same metabolic parameters will be recorded, except for MCT oxidation, which will be replaced by LCT oxidation.