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A member asked:
What is the normal range of b12 in a man of 61? also can metformin affect your b12 levels?
A doctor has provided 1 answer
B12 levels: The range for normal is specific for each lab the test is done at. My lab is fron 250 to 950. You would have to check your lab. Anyone on metformin has a tendance to drop their B12 levels. If you are on it consider taking 500 mcg daily. You want to take it in the morning as it gives you energy. B12 is water soluble so if you get too much your body can easily waste it.
Answered 6/24/2014
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