Vitamin B 12: There is seldom a need for anyone with a normal diet in the usa or canada to need supplemental vitamins of any kind. With B12 it may take several years to become low if you have no gastric acidity due to medications or illness or you have pernicious anemia or infection with the fish tapeworm. Don't know what this has to do with flank (if it is really your kidney) pain, but would stop.
Answered 6/24/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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