Title : Fast food outlets and obesity
link : Fast food outlets and obesity
Fast food outlets and obesity
I was on the radio last year with some woman from a 'public health' group who wanted fast food outlets banned around schools because there was 'overwhelming evidence' that proximity to these shops increased the risk of obesity.It's a pretty good rule of thumb that if someone from the 'public health' racket claims that there is 'overwhelming evidence' of something then there is probably little or no evidence of it. So I looked into the literature, expecting to find a dozen studies or so. Instead I found 74 studies and this bit of fact-checking turned into a full blown project.
Today sees the publication of the resulting report: Fast Food Outlets and Obesity: What is the Evidence? You can download it for free but the basic conclusion is easy to summarise. There are far more studies showing no association between both the density and proximity of fast food outlets and obesity among both children and adults. In the case of children, null studies outnumber studies showing a positive association by more than four to one.
My report includes more studies than any previous evidence review in this area and its conclusion is the same as the six evidence reviews published by other researchers. The evidence that restricting fast food outlets will have any impact on obesity is extremely weak. If 'public health' was an evidence-based enterprise, it would have abandoned the idea years ago.
Do have a read of the report or read this short blog post about it.
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