The Claim

A daily multinutrient supplement containing 82 µg vitamin B12 and 1.03 mg vitamin B2 attenuates the decline in flavin adenine dinucleotide (FAD) levels over 4 months in healthy vegans compared to placebo.

Source: Assessment of vitamin A, vitamin B2, vitamin B12, vitamin K, folate, and choline status following 4 months of multinutrient supplementation in healthy vegans: a randomised, double-blind, placebo-controlled trial

What the research says

Supports is higher

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

Supports
82score
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

In healthy vegans, taking a daily supplement with 82 micrograms of vitamin B12 and 1.03 milligrams of vitamin B2 reduces the decrease in flavin adenine dinucleotide (FAD) levels over four months compared to taking a placebo.

See the scientific wording

A daily multinutrient supplement containing 82 µg vitamin B12 and 1.03 mg vitamin B2 attenuates the decline in flavin adenine dinucleotide (FAD) levels over 4 months in healthy vegans compared to placebo, suggesting a protective effect on functional vitamin B2 status despite no significant increase in absolute levels.

Why this might work

Vitamin B12 helps keep a key enzyme working that recycles a vital molecule needed for energy production. When this enzyme works properly, it prevents a backup of another molecule that would otherwise block the use of vitamin B2 in its active form. This allows the active form of vitamin B2 to stay at stable levels in cells, even when the total amount of vitamin B2 doesn't increase.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Assessment of vitamin A, vitamin B2, vitamin B12, vitamin K, folate, and choline status following 4 months of multinutrient supplementation in healthy vegans: a randomised, double-blind, placebo-controlled trial

    Taking this daily vitamin pill helped keep vitamin B2 working properly in vegans’ blood over four months, even though the amount of B2 in their blood didn’t go up — meaning the supplement kept the vitamin doing its job better than not taking it.

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

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