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[8] The total world production of vitamin B 12 , by four companies (the French Sanofi-Aventis and three Chinese companies) in 2008 was 35 tonnes
B12 shots are often recommended when there is a known absorption issue with B12 through the digestive system
How Does it Work
For an over-the-counter tablet you are taking without a medical reason, your doctor may suggest pausing it and repeating the test later so the result can be interpreted cleanly
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