68 percent got vitamin D above 40 ng by regular use of tanning bed

Chart from Grassroots Health

PDF is attached at the bottom of this page

See also VitaminDWiki

• Overview UV and vitamin D

• Vitamin D from low-cost UVB lamps

• Vitamin D produced by UVB – June 2013

• UVA decreased serum levels of vitamin D - RCT Oct 2012 - be sure that UV source has enough UVB

• UVB added in classroom reduced cavities, increased height, increased academics. etc

• Top UK soccer coach installed vitamin D booths in his club – Dec 2012

• Interview with transcript concerning UVA, UVB, and health – Grant Dec 2012

• Optimize vitamin D from the sun

• Increase your vitamin D from the sun by wearing a tan-through instead of standard shirt

• Allergic to the sun (Polymorphic light eruption) – you may need UVB or vitamin D

• Vitamin D charts from GrassrootsHealth - May 2016

• 3 tanning sessions raised vitamin D levels about 4 nanograms for about 4 weeks – July 2016