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Various factors can interfere with the absorption of vitamin B12, so the average levels may not be what is average for you, so it's essential to pay attention to how you feel despite the numbers
Bailey, M
As a renowned medical practice in Northglenn, CO, our goal is to provide outstanding care at competitive prices
Reported side effects Most people report minimal side effects
American Journal of Physiology-Endocrinology and Metabolism, 319(4), E659E666
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