No, eating tuna while under the sad spell of diarrhea is not
healthy for your stomach. When experiencing the tension and and
displeasure that is diarrhea, always ensure that you're eating what
is known as the "BRAT" diet, which is a pseudonym for a diet that
consists of bananas, rice, applesauce and toast. Sticking to this
diet while under diarrhea's uncomfortable wraith should help settle
your stomach.