4. Diarrhea

Another symptom of food poisoning is diarrhea or the passing of loose, watery stool after being infected with a food-borne pathogen. This happens when toxins released by the infectious agents begin to irritate the walls of the digestive tract, causing the body to secrete water from the surrounding tissues into the bowels as an attempt to flush out the infection.

Diarrhea is one of the most unpleasant symptoms associated with food poisoning that, if left untreated, could lead to dehydration, a very serious and life-threatening complication especially in infants. To prevent this, it is important to consume plenty of water in order to maintain the balance of fluids in the body.