Vitamin D

Question

Hello, dear experts,

The book „Heilkraft D“ [German title: “Heilkraft” could be translated with: “healing power”] of Dr. Nicolai Worm lies in front of me: basically, it says that vitamin D deficiency is responsible for all kinds of diseases (not for CF, that is clear, but for cancer, heart attack, etc.). And his designated threshold values are much higher than those usually recommended.

Our CF patients are usually supplemented, our adult son with 1000 I.U. daily. However, the actual 25-OHD value is never checked… shouldn’t it be seen as well?

And: Which values are optimal in your opinion?

Thanks for your answer.

Answer

Hello,

Your information that CF patients are at risk for developing a vitamin D deficiency it correct. This is generally valid for all patients with a pancreas insufficiency. In order to make an appropriate vitamin D substitution it is necessary to have the 25-OH-vitamin-D-level checked regularly. Patients who have reached a regular level should be checked regularly once a year.

Regarding the normal range there have been intense discussions in the North American CF society in the last years. In FrankfurtMain [Germany], the normal range for the laboratory of the hospital is indicated as follows: 20 – 45 ng/ml for 25-OH-vitamin-D.
I think it makes sense to aim at a value around 30 ng/ml. This value lies within the normal range for Frankfurt (Germany?) und for the USA.

Best regards,
Dr. H.-G. Posselt

09.11.2009