One of the top trending Google searches at the time of this writing was "asparagine," one of the roughly 20 amino acids that make up the proteins in our bodies and in our food.
Why was this rather boring molecule that biology majors are forced to memorize grabbing international headlines? Because, according to the media, it causes cancer. And where can you find asparagine? It can be found in any food that contains protein -- which is a lot of foods -- including asparagus, the vegetable after which it was named.
Thus, asparagus causes cancer.
Think I'm joking? I'm not. This headline is from The Times of London: