In France vitamine D measurement in blood is now the 5th lab test in terms of costs for the "sécurité sociale": it costed almost 100.000.000 Euros in 2111, and the number of requests of vitamin D are increasing exponentially: the costs were below
40.000 Euros in 2009. At such a speed of increase, it would not be surprising that the costs would reach 150.000.000 Euros in 2013 and thus vitamin D would become the 2nd most costly test for the collectivity in France just after blood cell counts which cost
300.000.000 Euros each year (quite stable).
I would be interested to know whether or not such a waste of collective ressources are specific to France or if the same happens elsewhere in the world, particularly in the UK.