Economic freedom makes you fat
by Tim Worstall sub-topic» Food and Medicine /Right to choose your own
For look at what it actually is that they're saying. In those places where people are free to open up fast food joints the citizenry appear to like, enjoy even, consuming the produce of those joints. Assume that all of their calculations are indeed correct and that both this is true and also that this leads to lardbucketry. Excellent, since the aim of this whole economics thing is to maximise the possibly utility of the populace then we seem to have found a method of doing so. That is, maximise economic freedom and then let people do as they please.
Which is, of course, what is being done. That people use this freedom in a manner that certain prodnoses don't approve of makes no matter. For the utility we're trying to maximise is that of the populace not the prodnoses.