The next time you see a report claiming that there’s a link between some food or some environmental factor and a disease, examine it carefully. This is pretty much what happens a lot of the time:
Click to see it all in its natural environment, etc.
This is indeed pretty much how the Daily Fail can claim that everything either causes cancer or cures it. Or both, if you wait for the next headline. This is also what keeps Ben Goldacre too busy to give us another Bad Science book.