Reply To: I would like to ask you for guidance on vitamin d. Three months ago i had 11 ng/ml and after taking 25.000 weekly now i have 59 ng/ ml and i feel fine. The doctor told me to take 25.000 twice amonth now. The previous week i started to have pain in the right kidmey and the tests showed sand in the kidney. I was advised to drink more water and to stop completely taking vitamjn d3. Do you agree? For how long can i not take vitamin d? Is there alternative to supplements that wont produce stones in my kidneys? Thank you very much.