Reply To: Hello – After taking Vitamin D supplements for over 6 months in mid 2016, my count was still very low. My doctor put me on Prescription Vit D2 for 12 weeks, and the follow-up blood test revealed my count was even lower than before I started it. He put me on another 12 weeks of the same Prescription Vit D2. My next blood test will be late February 2017. Why is my body not absorbing the Vitamin D? What would the next step be if this second round doesn't improve my count?