[neverdem]

Which forms of vitamin D were they testing for? There are more than one, D3 and D6 mainly.

PROVISIONAL INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY and INTERNATIONAL UNION OF BIOCHEMISTRY JOINT COMMISSION ON BIOCHEMICAL NOMENCLATURE* NOMENCLATURE OF VITAMIN D PDF

D6 is listed at the end of page 6, the last page.

25-hydroxy vitamin D test

You can find it written as 25(OH)vitamin D. Some docs aren't thrilled with its methodology. My guess is a problem with the reproducibility of results.

[decimon]

Thanks.

The D2 and D3 forms are all I’ve seen as dietary supplements. Don’t know where the other Ds would be found or if they are suitable as supplement.