Do our intestines contain germs?

Yes. Germs aren’t all bad—in fact, some are helpful. For example, the common bacterium, E. coli, is found in our intestines and helps us digest green vegetables and beans (also making gases). These same bacteria also make vitamin K, which causes blood to clot. If we didn’t have this bacteria inside of us, we could bleed to death whenever we got a small cut.

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