Vitamin B12
Also known as: Cobalamin, Vitamin B12
Effective Dosage
2.4 mcg daily
What the Science Says
Vitamin B12 is essential for red blood cell formation, neurological function, and DNA synthesis. It is particularly important for individuals with dietary restrictions, such as vegetarians and vegans, who may be at risk for deficiency.
What It Doesn't Do
B12 won't turbocharge your metabolism or melt away pounds. It's not an instant energy fix. Don't expect dramatic weight loss or superhuman energy from B12 alone.
Evidence-Based Benefits
Vitamin B12 is essential for red blood cell formation, neurological function, and DNA synthesis. It is particularly important for individuals with dietary restrictions, such as vegetarians and vegans, who may be at risk for deficiency.
Strong EvidenceEffective at: 2.4 mcg daily
Source: auto-research
Absorption & Bioavailability
Good - Vitamin B12 is well absorbed, particularly in its methylcobalamin and adenosylcobalamin forms.
Red Flags to Watch For
- Products claiming to cure diseases or conditions with B12 alone
- High doses marketed without scientific backing or necessity
Products Containing Vitamin B12
See how Vitamin B12 is used in these analyzed products:
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-06