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A member asked:
How low is a vitamin d reading of 4.2?
A doctor has provided 1 answer
If using the same: range we use in the US, this reading is rock bottom. Typical range is between about 30-90 and optimal is about 50. Please see your doc. Many folks used 5000 K IUs to replete their vitamin D3 level. Good research to support the benefit of D3. Peace and good health.
Answered 4/9/2015
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