Eating certain foods can cause a person to have blue poop. People should be aware of their stool and seek medical care if there are any major changes. People can pass blue stools if they consume food ...

Blue is far from the usual stool color, but it isn’t usually a cause for concern. Most of the time, blue stool is due to blue pigments or dyes that come out when your food is digested. If you take a ...

The Blue Poop Challenge measures gut transit time by tracking how long it takes blue food to pass. Researchers found that gut transit time lasted approximately 28.7 hours in a study. People with ...