How exactly does food poisoning work? How does the body know that the food is contaminated and which way to expel it out? How does it know when things are safe again?
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E.coli and other bacteria are super tiny things that live and grow in food. As they grow and make more bacteria, they produce toxins (toxins are substances that make you sick), some of the toxins get destroyed by cooking, but some are still there even when cooked. When these toxins hit your insides they make your belly upset. Your body doesn’t want you to eat any more toxins, so you can even feel sick just looking at or smelling food.
Looking at some of the other answers I’d like to clarify. Bacterial infections in the bloodstream are known as sepsis.
When you get e.coli infection, it is actually infecting your gut lining. There are different types of infections, some break the cells of the gut lining and can cause bleeding, other times it changes they way the cells exchange water resulting in really watery poops.
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