The results of anxiety from LEfSe analysis indicate that FC individuals with higher GAD-7 scores had a lower relative abundance of g_Granulicatella, g_Turicibacter, g_Peptococcus, and g_Peptostreptococcus, and a higher abundance of g_Bacteroides, g_Paraprevotella, and g_Cc_115. Here, GAD1 is linked to Anxiety.