http://reason.com/0303/fe.mf.big.shtml
Reason's politics are suspect, as far as this old leftist is concerned, but it is damn good at taking large pins and  poking any balloons it thinks are full of bullshit--right left or in between
 
this one concerns the atkins diet, and it is about as nasty as it can be, which is refreshing, cause every criticism i have seen so far are much too polite.