Her er en posting som gir nye retningslinjer på vitamin D-nivåene:
http://forums.about.com/n/pfx/forum.asp ... ab-thyroid

"I'm using this reference from PubMed as my guidepost for my vitamin D levels.

25(OH)D Level (nmol/L) Health Implications
<50 Deficiency
50-80 Insufficiency
80-250 Sufficiency
135-225 Normal in sunny countries
>250 Excess
>325 Intoxication


Grant, W. B. and M. F. Holick (2005). "Benefits and requirements
of vitamin D for optimal health: a review." Altern Med Rev 10(2):
94-111."