How much vitamin d do you need with a vitamin d defiecentcy?

10,000 IU

or

go to a physician and if your vitamin D level is low, he/she can give you prescription doses at 50,000 IU per pill which you take weekly for roughly 3 months. Afterward you get your levels checked to see where you fall. Be very careful taking doses higher than 5,000 IU daily if you don't know your current vitamin D status.