It also helps regulate homocysteine, an amino acid that, when elevated, is associated with cardiovascular and neurological risks
For individuals aged 50 and above, adequate consumption of vitamin B12 is crucial for maintaining good vision and protecting against macular degeneration
Initial response time also depends on: Severity of the B12 deficiency Frequency of injections Underlying health conditions Absorption and metabolism differences If youre getting your first B12 shot, your provider may start you on a more aggressive schedule, such as weekly injections until your levels are normalized
doi: 10.1152/ajpendo.00201.2006
oral vitamin B12 replacement When offering oral vitamin B 12 replacement to people with vitamin B 12 deficiency caused, or suspected to be caused, by malabsorption, prescribe a dosage of at least 1 mg a day