A 49-year-old female asked:
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I have to take a blood test to measure a vitamin deficiency. Since I take a multivitamin, when should I stop taking it to make sure results ok?

1 doctor answer
Dr. Ed Friedlander
43 years experience in Pathology
Whoa: Who is asking you to do this? What is the purpose of this testing if you are already supplementing? Be very careful -- there are several phony labs that offer bogus "vitamin testing." If you have any doubts, get a second opinion. Best wishes.
Answered on Jul 20, 2014

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