Alternatively, the alt text from: http://xkcd.com/552/ http://xkcd.com/552/ > Correlation doesn't imply causation, but it does waggle its eyebrows suggestively

Alternatively, the alt text from: http://xkcd.com/552/ http://xkcd.com/552/ > Correlation doesn't imply causation, but it does waggle its eyebrows suggestively and gesture furtively while mouthing 'look over there'. There seems to be enough evidence that it's not unreasonable to believe your weight is strongly influenced by your gut bacteria.