Figure 2. Effects of choline supplementation on TMAO synthesis in C57BL/6J mice. Plasma TMA (A) and TMAO (B) levels in C57BL/6J mice with or without choline supplementation (1%) as determined by LC/MS. ***P<0.001, versus the C57BL/6J mice, by unpaired Student's t-tests. All values are mean ± S.D. n=30.