A 1999 Vitamin D test found that 73% of the Australian adults had less than 30 ng of vitamin D.
The study published in Jan 2012 stated that 31% had less than 20 ng of vitamin D, and they downplayed the 73% results
Fact: Australia, US, UK and several other countries still officially state that 20 ng is sufficient
Fact: 2X more people have become vitamin D deficient in 2010 than were vitamin D deficient in 2000, when the study was made
What did the headline say? Vitamin deficiency strikes one-third of Australians
What should it have been? Vitamin deficiency strikes 90% of Australians