Fig. 1
From: Prediction of BMI traits in the Chinese population based on the gut metagenome
Comparison of gut microbial diversity at the species level. The Shannon index represents α-diversity, and principal coordinate analysis (PCoA) based on the Bray‒Curtis distance represents β-diversity. The overweight group is designated pink, the normal weight group is designated yellow, and the underweight group is designated green (Wilcox test, NS: p ≥ 0.05, *: p < 0.05, **: p < 0.01, ***: p < 0.001)