Table 3.

Bacterial taxa selected by the multivariate analysis with strengths of association with the dietary intervention, p < 0.05

Bacterial taxa	Low‐Brassica diet						High‐Brassica diet						Day 15 high to Day 15 low
	Day 0		Day 15		Diff		Day 0		Day 15		Diff		Mean	SD	P
	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
p_Firmicutes	−7.15	2.17	−6.88	1.71	0.26	0.88	−7.41	1.41	−7.80	1.74	−0.38	1.11	−0.91	1.04	0.0206
o_Clostridiales	−5.02	2.12	−4.93	2.05	0.09	0.68	−5.10	1.56	−5.75	1.89	−0.64	1.29	−0.82	0.93	0.0037
f_Ruminococcaceae	−6.35	2.34	−5.86	2.29	0.49	0.80	−6.95	2.34	−7.23	2.38	−0.28	0.79	−1.37	1.26	0.0001
f_Mogibacteriaceae;other	−7.83	1.65	−7.90	1.81	−0.07	0.84	−8.31	1.61	−8.60	1.76	−0.29	0.82	−0.70	0.77	0.0360
f_Mogibacteriaceae;g	−5.86	1.31	−5.57	1.15	0.29	0.49	−5.99	1.15	−6.31	1.30	−0.31	0.31	−0.74	0.36	0.0024
f_Rikenellaceae;other	−6.17	1.00	−5.76	0.72	0.42	0.79	−6.24	1.18	−6.58	1.39	−0.33	1.40	−0.82	1.03	0.0295
f_Rikenellaceae;g	−5.06	0.87	−4.69	0.59	0.38	0.83	−5.09	1.14	−5.35	1.03	−0.26	1.02	−0.66	0.77	0.0078
g_Alistipes	−7.85	1.45	−7.28	1.31	0.57	0.76	−8.29	1.44	−8.38	1.60	−0.09	1.51	−1.10	0.88	0.0254
g_Dehalobacterium	−8.84	1.76	−8.72	1.90	0.12	0.52	−9.46	1.79	−9.42	1.79	0.04	1.18	−0.69	0.86	0.0206
g_Clostridium	−8.98	0.83	−9.17	0.96	−0.20	1.07	−9.42	0.87	−9.94	1.19	−0.53	0.70	−0.77	0.45	0.0059

Day 0 and Day 15, values obtained before and after each dietary intervention phase; Diff, paired differences between values obtained before and after each dietary intervention phase; Day 15 high to Day 15 low, paired differences between values obtained after the high‐ and low‐Brassica diet intervention phases; p, significance of Brassica diet in analysis of variance model, with bold values indicating p ≤ 0.0078. Bacterial proportions expressed as the natural logarithm of the fractional proportion of population after the addition of a small offset (0.00001). p, phylum; o, order; f, family; g, genus. Comparisons based on data from nine individuals (n = 9).