How do I know if I'm deficient in an important vitamin or mineral?

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How do I know if I'm deficient in an important vitamin or mineral?

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David Kiefer, MD

Family Medicine

University of Washington

10 Answers
18 Helpful Votes
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Some vitamin or mineral deficiencies can cause symptoms such as fatigue, pallid-looking skin, brittle hair or fingernails, diarrhea, memory problems, and a weakened immune system. But most deficiencies have to be extreme or have to continue for a long time to cause noticeable problems. If you're worried about vitamin or mineral deficiencies, talk to your doctor. Tests are available to measure levels of key vitamins or minerals such as vitamin D, B12, or iron.

This answer should not be considered medical advice...This answer should not be considered medical advice and should not take the place of a doctor’s visit. Please see the bottom of the page for more information or visit our Terms and Conditions.

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