Rankings / Essentials — Vitamins & Minerals
B vitamins (B-complex)
Essentials · Vitamin
Tier A
Bottom line
Read Off Label grades B vitamins (B-complex) as A (8.0/10) based on strong evidence, med benefit magnitude, and a low-risk safety profile.
Lowers homocysteine reliably, but B-vitamin supplementation in replete populations has not reduced cardiovascular events or mortality in large RCTs.
Typical use: B-complex daily; methylated forms (methylfolate, methyl-B12) preferred for MTHFR variants — OTC.
What this is
Lowers homocysteine reliably, but B-vitamin supplementation in replete populations has not reduced cardiovascular events or mortality in large RCTs. Stroke signal in some meta-analyses.
Mechanism
Cofactors for energy metabolism, methylation (B9/B12), neurotransmitter synthesis (B6), homocysteine metabolism
Dose & route
B-complex daily; methylated forms (methylfolate, methyl-B12) preferred for MTHFR variants
Citations
- https://pubmed.ncbi.nlm.nih.gov/22652362/
- https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0107060
- https://www.neurology.org/doi/10.1212/WNL.0b013e3182a823cc
- https://doi.org/10.25259/csdm_6_2026
- https://pubmed.ncbi.nlm.nih.gov/40002371/
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Common questions
- Does B vitamins (B-complex) work?
- Read Off Label rates the evidence for B vitamins (B-complex) as Strong and the benefit magnitude as med, producing an overall grade of A (8.0/10). Lowers homocysteine reliably, but B-vitamin supplementation in replete populations has not reduced cardiovascular events or mortality in large RCTs.
- Is B vitamins (B-complex) safe?
- B vitamins (B-complex) has a low risk profile in published human data. Legal status: OTC. This is not medical advice — see the disclaimer.
- What is the typical dose for B vitamins (B-complex)?
- B-complex daily; methylated forms (methylfolate, methyl-B12) preferred for MTHFR variants
- How does B vitamins (B-complex) work?
- Cofactors for energy metabolism, methylation (B9/B12), neurotransmitter synthesis (B6), homocysteine metabolism
This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.