This month is the fifth and last time I will be eligible for an Alendronic infusion. My readings over the past five years show that my bone denisity has improved. I recently was tested for Vit D levels prior to the infusion and again told that my Vit D levels are low. I have health problems and use Predinisoline,Methotrexate and anti inflammatories, Amitryptiline. My question is this:
Why do my Vitamin D levels deplete over the year? I eat well.