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According to USDA Agricultural Research Service data based on NHANES, approximately 6% of adults aged 60 and older in the United States are vitamin B12 deficient, defined as plasma B12 below 148 pmol/L (2009)
People often report feeling not just more energetic, but also more focused and mentally sharp
It can be caused by not getting enough of this vitamin through your diet, problems with absorbing it, or taking a medication that interferes with its absorption
It depends on the area youre looking to treat
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