For prevention and treatment of vitamin B12 deficiency, cyanocobalamin in chewable, sublingual, or liquid forms (rather than in a multivitamin) is best under most circumstances
Escalation and specialty referral Some findings move the workup beyond primary management
[5] Nevertheless, any signs of hypersensitivity (such as a diffuse rash, wheezing, or feeling of throat tightness) warrant stopping the injection and seeking prompt medical care
The two-year study found that the supplementation improved B-vitamin status, decreased homocysteine concentrations, and reduced risk of total fractures compared to placebo (117)
Most people notice improved energy within a few days to a few weeks, depending on how low their levels are and how their body responds to treatment