I read Dr. Boone's article and looked over each intervention in the study's she listed. I noticed that many researchers were dosing once a month (one was only

I read Dr. Boone's article and looked over each intervention in the study's she listed. I noticed that many researchers were dosing once a month (one was only once a year!) at levels I would not consider therapeutic. Yes, at non-therapeutic levels, I would expect vitamin D to not show much difference from Placebo. I am not a vitamin D expert, but am wondering why she selected to discuss research that didn't even match current vitamin D recommnedations. Her favorite research was VITAL which I was thrilled to learn was daily for 5 years. Unfortunately, it was at a level (2000IUs) that could leave many people at subnormal levels of vitamin D. 1000 IU will bring up blood levels 5 ng/mL. 30 ng/Ml is considered okay. Many people believe that levels between 60-100 ng/mL is better. I have a genetic defect that keeps me below 30ng/ml regardless of sun exposure. I supplement at 15000 IU per day. Which brings my levels up around 70-90ng/mL