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Rochester, Pennsylvania
A 39-year-old female asked:

How many days prior to blood test for iron panel, rbc magnesium, selenium, vitamin d, and potassium should i withhold from taking those supplements?

1 doctor answer2 doctors weighed in
Dr. Randy Baker
Holistic Medicine 40 years experience
Don't take same day: There is no need to avoid taking these except on the day you get the test; and you can take them once your blood has been drawn.

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Last updated Dec 1, 2018

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