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A member asked:

How long it will take my vitamin d levels to raise from 19 to healthy level if i took 4000 iu of vitamin d daily? is 4000 adequate dose to supplement?

A doctor has provided 1 answer

Yes: 4000 units of vitamin D3/day is sufficient. It may take about three months for your stores of vitamin D to be replenished and the blood level to be at or above 30.

Answered 5/17/2019

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