A member asked:

Vit d is at 22 dr recomedy 50 currently taking 20,000 iu suppliment 1 per week. how long will it take to develop to 50?

A doctor has provided 1 answer

Varies: Some patients require 50,000 or 100,000 units per week in order to achieve blood levels over 35. You should follow the directions of your attending physician,however.

Answered 8/12/2015

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