mechanistic
Analysis v1
Strong Support
In rats, having more of a protein called VDR seems to help muscle repair cells multiply and grow, while reducing a protein that stops muscle growth—so it might help rats build more muscle.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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Overexpression of the vitamin D receptor (VDR) induces skeletal muscle hypertrophy
Cohort Study
Human
2020 DecScientists made rats produce more of a protein called VDR in their muscles, and the muscles grew bigger because more stem cells became active and stopped producing a muscle-growth blocker—exactly what the claim said would happen.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.