(via the blog)
A few years ago, food scientists discovered a compound in cilantro (both fresh leaves as well as seeds, more commonly known as coriander) named dodecenal which was found to be quite effective at destroying the Salmonella virus.
That is not to say, however, that cilantro guarantees you a foodborne illness-free meal.
Turns out you need to eat the same amount (weight wise) of cilantro as the offending food to offset food poisoning.
So, if your six-ounce chicken breast contains salmonella, you would theoretically need to eat six ounces of cilantro to experience any protective effects.
A fun fact, nevertheless!