From GrassrootsHeath
- 2009/2010 (8.9%) compared to
- 2001/2002 (5.8%). 1.58 X increase
- 91% of U.S. children still have < 40 nanograms. (as of 2010)
- Data has been adjusted to account for different testers used over the decade
See also VitaminDWiki
- Vitamin D levels in US: percent having more than 40 ng doubled (2001-2010) - Dec 2016
- Infant-Child category listing has
540 items along with related searches - A group of 6,000 people have vitamin D levels higher than 50 ng – GrassrootsHealth
Increased use of D category listing has34 items including the following - Vitamin D use increased 3.7 X, Omega-3 increased 9 X (US 1999-2012) – JAMA Oct 2016
- Vitamin D levels increasing 7 percent per year, bones denser in Japan (probably supplementation) - June 2015
- Vitamin D supplementation in Ireland - big increase in people with 20-50 nanograms in 20 years – June 2015
- Many more people now have vitamin D levels above 50 ng, especially seniors – May 2015
has the following chart for one county in the US
Download the PDF chart from VitaminDWiki
Vitamin D in US children: those having more than 40 ng increased 60 percent (2001-2010) - Dec 2016
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