why vitamin b12 injections versus oral supplemnets The Advantages of Supplements: Shawn Veiseh, M.D.: Family Medicine B12 Injections vs. Oral Supplements:

Deficiency of vitamin B12 is a condition in which the body doesn't make enough red blood cells and does not receive enough Vitamin B12, per the National Health Service (NHS)

This level can be determined by a breath test or by chemical tests

If these measures do not work, an over-the-counter osmotic laxative like polyethylene glycol (MiraLAX) can be used daily as needed

Vitamin B12 deficiency may contribute to hearing impairment at low frequencies (0.25 to 4 kHz) in children, whereas pure-tone hearing thresholds from 8 to 16 kHz do not seem to be affected (09)

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