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This is because: Older adults make less stomach acid, which is needed for B12 absorption
synthesized by certain bacteria Although the intestinal flora of humans is able to synthesize vitamin B 12 , humans are not able to absorb bacteria-generated vitamin B 12 since the location of synthesis (the colon) is too distal from the location of absorption (the small intestine)
The video offers a detailed analysis of the study's findings, highlighting the importance of personalized nutritional care for critically ill patients, and provides a valuable contribution for healthcare professionals when reflecting on evidence-based practices to optimize nutritional management in ICUs
By 60, they've dropped to roughly 80 ng/mL
doi:10.1007/s00027-003-0672-7
They do not, except at one downstream point of overlap
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