How Vitamin D Helps Muscles Grow
1,25‐Dihydroxyvitamin D3 Mediates L6 Myoblast Differentiation via Vitamin D Receptor (VDR)
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
At 100 pM, vitamin D completely reversed the effects of VDR knockdown, restoring gene expression to normal levels despite the receptor being suppressed.
It contradicts the assumption that VDR is the only pathway—suggesting vitamin D might have VDR-independent effects at high doses, which is rarely discussed in public health messaging.
Practical Takeaways
Ensure adequate vitamin D levels if you're focused on muscle recovery or athletic performance.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
At 100 pM, vitamin D completely reversed the effects of VDR knockdown, restoring gene expression to normal levels despite the receptor being suppressed.
It contradicts the assumption that VDR is the only pathway—suggesting vitamin D might have VDR-independent effects at high doses, which is rarely discussed in public health messaging.
Practical Takeaways
Ensure adequate vitamin D levels if you're focused on muscle recovery or athletic performance.
Publication
Journal
The FASEB Journal
Year
2017
Authors
M. Park, Jonggu Kim, K. Whang
Related Content
Claims (6)
A form of vitamin D that your body uses helps muscle cells grow better, improves how muscles use insulin to build protein, and makes the energy factories inside muscle cells work harder.
When scientists reduced a specific vitamin D sensor in rat muscle cells, the cells made less of a protein linked to slow-twitch muscles—unless they added a lot of vitamin D, then the protein came back.
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.
When scientists added a form of vitamin D to rat muscle cells in a dish, the cells made more of a protein called VDR — and the more vitamin D they got, the more VDR they made. This suggests vitamin D might help control this protein in muscle cells.
When scientists reduce a specific vitamin D sensor in rat muscle cells, the cells make less of two important muscle-building proteins—but giving them a tiny amount of active vitamin D brings those proteins back up.