Reply To: I am in my 6th week of taking 10,000iu for vitamin D deficiency. My level was 28ng/ml. I have symptoms of depression and muscle weakness. How long of supplementing until I feel relieved of my symptoms?
Once a day, everyday and make sure you take it with food for absorption. (Vitamin d needs a little “fat” to absorb best.) Since you were taking 10,000iu you could just go to 15,000iu a day instead of jumping to 20,000iu?