5 doctors weighed in:
What are the signs and symptoms of vitamin deficiency?
5 doctors weighed in

Dr. Steven Charlap
Holistic Medicine
4 doctors agree
In brief: Blood test
The only way to know definitively if you have a deficiency is to check your blood.
Vitamin d, b12and folate are routine tests available in most labs and covered by insurance. The other vitamins usually require a special labs, are more expensive, and may not be covered under insurance.

In brief: Blood test
The only way to know definitively if you have a deficiency is to check your blood.
Vitamin d, b12and folate are routine tests available in most labs and covered by insurance. The other vitamins usually require a special labs, are more expensive, and may not be covered under insurance.
Dr. Steven Charlap
Dr. Steven Charlap
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