Supplement • Nutrition & deficiency
Vitamin B12
Also called Cobalamin
What it is, the potential benefits being studied, and what the evidence supports right now.
Well established•Status depends on the exact product
01 • Start here
Potential benefits being studied.
Preventing or correcting B12 deficiency and related anemia or neurological effects.
- Brain & cognition
02 • Why it stands out
The simple explanation.
Vitamin B12 is getting attention for preventing or correcting B12 deficiency and related anemia or neurological effects.
03 • Research highlight
Why researchers are interested.
Vitamin B12 is best known for preventing or correcting B12 deficiency and related anemia or neurological effects, with a defined role supported by human experience.
Evidence detailsStudy limits, status, and safety context
Study summary: Supplementation is effective for deficiency and is especially relevant when absorption or dietary intake is inadequate.
What to keep in mind: Extra B12 has not been shown to create more energy or cognitive benefit when status is adequate.
Potential benefits describe research questions, not a promise that a product will produce the same result in a person.