Table 2. Relative abundance ratios of gut microbiota at the genus level.

	Relative abundance median (25%–75%) (% detection ratio)
	1-kestose		Lactulose
	Day 7	Day 28	Day 7	Day 28
Bifidobacterium	67.3 (58.4–89.9)	51.1 (28.5–73.6)	64.5 (47.4–79.6)	41.6 (23.3–62.9)
Staphylococcus	22.0 (3.9–38.5)	10.9 (3–20.1)	31.2 (20.4–39.8)	12.8 (7.8–25.5)
Enterococcus	0.0 (0.0–0.0)	0.1 (0.0–3.4)	0.0 (0.0–0.0)	6.0 (0.1–18.6)
Streptococcus	0.1 (0.0–0.2)	0.5 (0.1–1.6)	0.1 (0–0.4)	0.4 (0.1–5.3)
Clostridium sensu stricto	0.0 (0.0–0.0)	0.0 (0.0–0.0)	0.0 (0.0–0.0)	0.1 (0.0–3.6)

The results are shown for five bacteria in which one of the median values at the same time point in the same group was 0.1% or higher.