The Claim

Daily supplementation with a multivitamin, mineral, and herbal formula for 16 weeks significantly increases blood levels of vitamin B6 and vitamin B12 in healthy adults aged 55–65, with effect sizes indicating large clinical relevance (partial η² = 0.536 for B6 in women; partial η² = 0.486 for B6 in men), demonstrating a direct causal effect of supplementation on these biomarkers.

Source: Improved Blood Biomarkers but No Cognitive Effects from 16 Weeks of Multivitamin Supplementation in Healthy Older Adults

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
77score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Taking a daily multivitamin, mineral, and herbal supplement for 16 weeks raises blood levels of vitamin B6 and vitamin B12 in healthy adults aged 55–65, with large effect sizes observed for both vitamins.

See the scientific wording

Daily supplementation with a multivitamin, mineral, and herbal formula for 16 weeks significantly increases blood levels of vitamin B6 and vitamin B12 in healthy adults aged 55–65, with effect sizes indicating large clinical relevance (partial η² = 0.536 for B6 in women; partial η² = 0.486 for B6 in men), demonstrating a direct causal effect of supplementation on these biomarkers.

Why this might work

When a person takes a multivitamin daily, the vitamins B6 and B12 in the pill dissolve in the gut, get absorbed into the bloodstream, and travel to cells throughout the body, raising the amount of these vitamins in the blood.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Improved Blood Biomarkers but No Cognitive Effects from 16 Weeks of Multivitamin Supplementation in Healthy Older Adults

    Taking this daily multivitamin for 16 weeks clearly raised B6 and B12 levels in the blood of older adults, just like the claim says — even though it didn’t make people remember things better.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.