1. From the Lipid Metabolism Laboratory (S.L.-F., M.R.D., A.B., M.N., K.V.H., B.F.A., S.O., M.A., E.J.S.), the Cardiovascular Nutrition Laboratory (N.R.M., A.H.L.), and the Mass Spectrometry Laboratory (G.G.D.), Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, and the Friedman School of Nutrition Science and Policy at Tufts University and Tufts University School of Medicine, Boston, Mass; and the School of Medicine and Pharmacology (P.H.R.B.), University of Western...