doi: 10.3945/jn.113.178780 J. Nutr. September 1, 2013 vol. 143 no. 9 1520
by Dr. Cannell
UVC was proven to generate vitamin D 70 years ago
Following is an image of PDF which is behind a paywall – so the text cannot be translated.
- UVA decreased serum levels of vitamin D - RCT Oct 2012 another possible reason: could have had higher UVB/UVA ratio than normal
- UVB produced 8X more vitamin D as solar UV – July 2012
- Vitamin D3 for Vegans D3 made from Lichen, marine algae, mushrooms
- Vitamin D from animal increases 6X when consider that already processed by animal livers