An article looking at the change at Weight Watchers from the Points programme to the ProPoints programme might seem a strange choice of weekend read. I’m not a Weight Watchers member, and I’ve always been slightly sceptical of the dependence and complex mystification around healthy eating that such schemes generate. But there is good evidence that Weight Watchers helps people lose weight (though I’m not sure what their longterm maintenance rates are like). So I found this peek behind the curtain, written by Jeffrey M O’Brien for Wired, fascinating.