Figure 2.

¹³C‐enrichment (δ ¹³C in ⁰/₀₀) in organs and plasma (left axis) and urine (right axis). Wild‐type (WT; treated n = 5) and germ‐free mice (GF; treated n = 4) received 1 g per kg body weight ¹³C‐labelled 2´FL by oral gavage. After the indicated time points, mice were sacrificed and organs, plasma, and urine were collected and ¹³C‐enrichment was measured by EA‐IRMS. Data are depicted as box plots with median and min–max whiskers; data for plasma are shown as mean ± SD (differences to corresponding controls were significant at *p < 0.05, **p < 0.01, and ***p < 0.001).