There will not be any noticeable change in the color of your stool when you eat greens, but if you eat too much greens at one time, the color of your stool may change a bit. This is because of the high chlorophyll content in brussels sprouts, the stool may turn green, and this is also normal. If you do not feel any significant gastrointestinal discomfort or pain, no treatment is needed. The color of the stool will be affected by diet, after eating green vegetables stool may be green, if eaten after animal blood may also turn black. If your stool turns green after eating some green vegetables, you may be suffering from indigestion, intestinal dysfunction and other diseases, and if your stool contains pus, you may be suffering from acute enteritis. Professional treatment and anti-inflammatory drugs are needed. When the color of the stool changes after eating green vegetables, do not be anxious, you can first observe two days, if it returns to normal, it is caused by diet, no need to treat.