The Claim
In rat L6 myoblasts, the vitamin D receptor partially modulates the effects of 1,25-dihydroxyvitamin D3 on myogenic differentiation and fiber-type gene expression, suggesting that the vitamin D receptor is one of several mediators of vitamin D’s actions in muscle cells.
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In lab-grown rat muscle cells, a form of vitamin D helps change how the cells develop into muscle fibers, but only partly — another protein called the vitamin D receptor is involved, and it’s probably not the only one doing the job.
See the scientific wording
In rat L6 myoblasts, the effects of 1,25-dihydroxyvitamin D3 on myogenic differentiation and fiber-type gene expression are partially modulated by the vitamin D receptor, suggesting VDR may be one of several mediators of vitamin D’s actions in muscle cells.
What the research says
1 studyStudy: 1,25‐Dihydroxyvitamin D3 Mediates L6 Myoblast Differentiation via Vitamin D Receptor (VDR)
The study found that vitamin D helps muscle cells develop and change type, and while the vitamin D receptor plays a big role, it’s not the only way vitamin D works — other paths also help, which matches the claim.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.