Figure 2

K-means clustering analysis on the 50 significantly increasing (q < 0.05) urinary metabolite features after adding FA or one of the aleurone preparations (A1-A4) into the diet when compared to HF control diet. The signal abundances were row-wise normalized and classified into three different clusters. The color-coding scale indicates the abundance within each metabolite: blue: low abundance, yellow: high abundance, gray: not detected. Each replicate is a pool of 2–3 mice on the same diet group.