Asthma Symptoms Improved by Taking Vitamin D

vitamin D and the sunshineThe importance of this study was not in finding that vitamin D deficiency is associated with asthma, but that treatment of children with moderate to severe persistent asthma with vitamin D improved symptoms, reduced the need for steroids, reduced emergency room visits, and children had better control of their asthma. This was a double blinded study with placebo control (the best design) and the intervention was simply giving children 60,000 IU Vitamin D a month (that is 2,000 IU a day). 

You can read the study here…

This dose is appropriate for school-age children, and those reaching adult size and weight could actually take up to 5,000 IU a day, from my experience, to reach those optimal vitamin D levels of 50-80 ng/dL. (normal is 30-100).

If there is one supplement everyone should be taking, it’s vitamin D.  Why you ask?  Since the conversion of vitamin D to the active form happens in our skin with exposure to sunlight, either you will choose to spend a lot of time in the sun without sunscreen (cancer risk) or you take a vitamin D supplement.  The current recommendations for daily requirements are simply inadequate.  If you doubt me on this, Next time you have your blood drawn, add a 25-OH vitamin D3 level.  If you are in the 50-100 range you are in great shape.  Over 100ng/dL, you should lower your dose of vitamin D.  

In the USA, 1% have levels above 50 ng/dL (my best guess from review of many published studies). This means that 99% of us are deficient!  If you have darker skin, your need for sun exposure or vitamin D supplementation is even greater, since melanin in the skin blocks the sun’s stimulation of vitamin D production.  You take the same dose, just be aware that you most certainly are deficient if you are not spending a lot of time in the sun.

I have written numerous blogs and YouTube videos on the topic of Vitamin D.  Search at  



Dr. Paul


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