Revised Vitamin D Council Levels for Vitamin D

Here is some new information on vitamin D for you:


The Vitamin D Council has guidelines on the ranges for vitamin D. They recommend maintaining serum levels of 50 ng/ml (125 nmol/L) with the following reference ranges:

• Deficient:                   0-40 ng/ml (0-100 nmol/L)
• Sufficient:                  40-80 ng/ml (100-200 nmol/L)
• High Normal:             80-100 ng/ml (200-250 nmol/L)
• Undesirable:              >100 ng/ml (>250 nmol/L)
• Toxic:                        >150 ng/ml (>375 nmol/L)


Note: these ranges have been edited (raised) from a few years ago. I ought to have checked them again but assumed they had not shifted.

I have had to change the text of 'The Thyroid Patient's Manual' book and 'Recovering with T3' to reflect these.

The printer has now been printing new copies with the corrected ranges in for several weeks (the new text went into print at the printers on June 6th 2019). So, it is likely that online retailers like Amazon are now stocking the corrected versions. 

The ranges in the book are perfectly safe (non-toxic) but just a little too low. The previous text stated ideal was 40-50 ng/ml (100-125 nmol/L).  This is obviously a bit low in light of the revised ranges, which would be 40- 80 ng/ml (100-200 nmol/L).

This blog has the correct ammendment though.

For those of you who have the current 'The Thyroid Patient's Manual' book I would print and cut out the text between the two dotted lines above and stick it in your own copy on page 76.

For those with the Updated Edition 2018 of 'Recovering with T3' you can do the same to the text on page 59.

This is what I have done to my own copies.

It is inevitable that small errors are present, I just did not expect such a revision by the Vitamin D Council on vitamin D ranges, as medical ranges very rarely get modified.

In 'The Thyroid Patient's Manual there is also a mistake on page 166 regarding optimal Dheas levels in post-menopausal women. This has also been corrected. So, the following text could be printed, cut and pasted over the few relevant lines on page 166 of this book.
The new text reads:


Optimal DHEAS - non-cycling/post-menopausal women
US units:   30-240 ug/dL
European units:  0.82-6.5 umol/L


My sincere apologies.

As I said above, by now all new printed copies will have the corrections in them.

Best wishes,