Many US kids have less than 40 ng of Vitamin D – 99 out of 100 blacks, 91 out of 100 whites
From Grassroots Health US children and teens in 2010
Two groups have similar high risk of having low vitamin D and black children Obese, Seniors
See also VitaminDWiki
Obese children – 71 percent had low vitamin D– Jan 2016 less than 30 ng
Italian youth vitamin D deficiency increased likelihood: 27X if winter, 5X if obese, etc. – Aug 2013
Is 50 ng of vitamin D too high, just right, or not enough
- Grassroots Health and many others have chosen 40 nanograms, some have chosen 50 nanograms
- I have chosen to have 100 ng of vitamin D
- many genes can restrict the vitamin D level measured in the blood from getting to the cells
- I paid $29 for a home test of my Vitamin D receptor - it was poor
Huge decrease in many health problems as increase vitamin D
click on chart for details
Evolution seems to indicate a vitamin D level of 45-60 ng
click on chart for details
Graph of weekly response to monthly vitamin D supplementation – Aug 2015
Takes about 14 weeks to get to 40 ng with 100,000 IU monthly
Can get to 50 nanograms in 1 week if use a loading dose
Obese need 2.5X more vitamin D
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