The Claim

In female weanling Sprague-Dawley rats, dietary vitamin D3 intake ranging from 1 to 4 IU/g over an 8-week period causes a dose-dependent increase in serum 25(OH)D3 levels.

Source: Lean body mass accretion is elevated in response to dietary vitamin D: A dose-response study in female weanling rats.

What the research says

Supports is higher

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

Supports
14score
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.

Quantitative
1 study reviewed
In plain English

When baby female rats eat more vitamin D3 in their food, their blood levels of a vitamin D marker go up — and the more they eat, the higher it goes.

See the scientific wording

In female weanling Sprague-Dawley rats, serum 25(OH)D3 levels increase in a dose-dependent manner with dietary vitamin D3 intake (1 to 4 IU/g) over 8 weeks.

What the research says

1 study

  1. Study: Lean body mass accretion is elevated in response to dietary vitamin D: A dose-response study in female weanling rats.

    The scientists fed rats different amounts of vitamin D and found that the more vitamin D they got, the higher their blood levels of vitamin D became—exactly what the claim says.

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

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