Folic acid, dark green stools.

Under normal circumstances, simple folic acid tablets will not show green or dark green if you eat stool, because folic acid does not contain other ingredients such as iron. The dark green color of stool may be due to eating folic acid and eating iron at the same time. Because iron preparations contain certain iron elements, iron elements will cause stool to show dark green or black is a normal phenomenon. However, it is also necessary to rule out whether there are other diseases, such as gastrointestinal bleeding, intestinal tumors, etc.