Discussion
To explore the factors affecting the fecal BA composition, the present study investigated a wide range of variables including defecation status, habitual diet, intestinal microbiota, and fecal BA levels. The participants of the study were classified according to their fecal BA composition. In this study, 20.9% of the participants had high fecal BA levels with predominantly priBAs (CA and CDCA) (high-priBA cluster). This cluster was associated with an increased relative abundance of 