Maybe. There are no studies on it, even animal studies.
So, to many scientists that means don’t try it. However, scientists do not take care of patients, physicians do that. And, the standard of care for physicians has always been the relative weight of potential to help/danger to patients.
Your 5-year- old may well be on the autism spectrum. At least three clinical trials have shown vitamin D helps established autism. Vitamin D is safe; we have known, or should have known, it is safe since 1999 when Professor Reinhold Vieth’s paper “Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety”. This paper is free in its entirety. New employees of the Vitamin D Council must read it twice.
Yes, give your daughter vitamin D. Start with a vitamin D blood test then begin 150 IU/pound/day. Obtain another 25(OH)D in two months. Adjust the dose until her 25(OH)D is around 70-80 ng/ml.
I outlined my recommendations in my book, “Autism Causes, Prevention and Treatment: Vitamin D Deficiency and the Explosive Rise of Autism Spectrum Disorder,” published by Sunrise River Press.
First let me say that is “great” that words are “popping out”!
Now Dr. Cannell said in the original posting to “Start with a Vitamin D blood test then begin 150 IU/pound/day.” Did you get the blood test for her level? If so what was her level?
Now without the starting level, it makes things a little harder. She was more than likely deficient, everyone is. When a child is deficient, we usually recommend 1000iu for every 25lbs of body weight but that is if they are basically having no major health issues at that moment. So that would be 2000iu a day for her. If a child for example has Autism then Dr. Cannell says 150iu per pound. That for your daughter would equal 8000iu. You can see the difference.
So if you did not get the test, please let me know why and we will go from there on what amount to give. (Sometimes I think we all forget that there are good reason’s for example her doctor would not authorize one or money is tight and you cannot afford to take her to the doctor. The VDC does sell a blood spot testing kit and some people are not aware of this. Again if there is no money to buy one, that still presents a problem.)