Principal Components Analyses (PCA) for Fasting to Postprandial Changes in Metabolites.^*

*Changes were computed as postprandial metabolite concentration minus preprandial metabolite concentration. For these differences, PCA was performed separately for each metabolite class: fatty acids, acylcarnitines, and amino acids. Key metabolites within each component (i.e., metabolites with component load ≥|0.5|) are presented.代谢物的变化量通过餐后代谢物浓度减去餐前代谢物浓度计算得到。针对上述浓度差值，我们针对每一类代谢物分别开展主成分分析（Principal Component Analysis，PCA）：包括脂肪酸、酰基肉碱及氨基酸。最终呈现各主成分中载荷绝对值≥0.5的关键代谢物。