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B12 plays a major role in several processes like making red blood cells, converting food into energy, and forming new DNA
DO NOT SHAKE vigorously or vortex
(National Institute of Health or NIH Vitamin B12 shots are normally available by prescription only, although dosage varies depending on age and medical history
Depending on the individual, monthly injections of B12 may be sufficient for some, while others may need more frequent doses
[1] Natural NAD+ levels decline progressively with age
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