Phocaeicola faecalis FXJYN30E22 showed beneficial effects in the treatment of ulcerative colitis, such as anti‐inflammatory effects, with the increase in the concentration of junctional proteins such as ZO‐1, claudin‐1, and occludin, and SCFA such as acetate and butyrate [62]. Here, CLDN7 is linked to ulcerative colitis.