TP and IP leucine transfer in GD19 placenta (IP) and fetus (TP) are shown. *, P = .03, **, P = .003 (A), MiMCR vs control (CON); *, P = .03, **, P = .001 (B), MoMCR vs CON; and glut1 (+/−) vs wt (+/+) (C), not significant. CR, respective maternal calorie restriction.