depends on how much has consumed. remember lettuce is mostly water and roughage. consider also where the lettuce came from . as if a salad bar . there may be bacteria such as e-coli or salmonella. best to have a stool culture taken if this continues beyond two days people just simply refuse to wash their hands . and contamination spreads. also depending on sprays . if it was washed before it was consumed?
can lettuce cause me to have diarrhea? . we think lettuce is causing diarrhea. we don't know what else it could be. every week for about a month now if i eat lettuce or my boyfriend eats it it causes diarrhea and stomach pain. one time it has even caused us to have stomach flu symptoms.