In the imperfect communication that translates scientific findings into public pronouncements, a thin thread of an association can come off as a headline that touts a sure-fire way to prevent cancer. But associations and correlations are not definitive proof of causation.
We cannot seem to turn off our pattern-seeking or cause-effect neurons. Sometimes the results are benign. Unfortunately, our incredible talent for seeking patterns and linking cause to effect has a dark side: We see patterns where none exist and cause where only chance reigns supreme.
Be careful when you read headlines about new miracle cures and the wondrous effects of supplements. Study results can be manipulated readily, even when people are trying to do very honest, scientific work.