Table 2.

PERMANOVA statistical analysis of beta diversity metrics across all groups as well as in pairwise comparison against WD/reference diet.

	PERMANOVA Across All Diets	Pairwise PERMANOVA Results
	(n = 205)	Flex vs. WD (n = 102)	VG vs. WD (n = 101)	VN vs. WD (n = 102)
Beta Diversity	p-Value	p-Value	p-Value	p-Value
Unweighted Unifrac	0.015	0.142	0.034	0.002
Weighted Unifrac	0.011	0.247	0.013	0.003
Bray-Curtis	0.001	0.211	0.001	0.001
Jaccard	0.001	0.163	0.006	0.001

WD = Western Diet; Flex = Flexitarian; VG = Vegetarian; VN = Vegan. Significance levels: p < 0.05, significant; p < 0.01, highly significant.