01
Why supplement?
✓
Supports nerve function
Vitamin B12 is involved in maintaining myelin and the nervous system.
Mechanism: Established✓
Supports red blood cell formation
Vitamin B12 and folate work together in normal blood formation and DNA synthesis.
Nutrition consensus: EstablishedADVERTISEMENT
02
How to take it
With foodWith or without food
Best timeMorning or midday
Forms include cyanocobalamin and methylcobalamin; choose as a clinician advises.
General wellness2.4 mcg/day for adults; 2.6 mcg/day in pregnancy
Specific needsDeficiency may need high-dose oral or injected treatment, decided by a doctor using lab tests.
How oftenUse the recommended daily intake or a clinician's directions.
03
What to watch
Cautions
Vegans, people after gastrointestinal surgery, or those using metformin/acid-suppressing drugs should consider checking B12 status.
Numbness in the hands or feet, weakness, or tongue inflammation should be checked by a doctor, not only self-supplemented.
Common side effects
· Usually well tolerated by mouth
Rare but important
· Allergic reactions after injection are rare.
Long-term dependenceDoes not cause addiction or typical tolerance.