The Gene That Controls Vitamin D Absorption May Be Key to Its Efficacy
December 12, 2025
Understand more about how vitamin D can act as a protector against cancer.
Did you know that vitamin D relies on a specific gene for absorption and activation in our bodies? And that this same gene can be a powerful target in the treatment of cancer and autoimmune diseases?
A recent study published in the journal *Frontiers in Endocrinology* revealed something surprising: the SDR42E1 gene is essential for intestinal absorption and metabolization of vitamin D – and this changes a lot.
Vitamin D goes far beyond bone health. It acts in regulating the immune system, protecting against inflammation, strengthening muscles, promoting brain health, and even controlling cell growth.
But for all this to happen, the body needs to activate vitamin D. And the SDR42E1 gene is part of this mechanism.
When this gene is defective, even with vitamin D supplementation, the body cannot use it correctly.
In the study, scientists used the CRISPR (gene editing) technique to turn off the SDR42E1 gene in colorectal cancer cells. What happened?
This indicates that this gene is fundamental for the survival of certain types of cancer. In other words, inhibiting this gene could be a new therapeutic strategy — more specific and with fewer side effects.
People with functional deficiency of this gene may have difficulty absorbing and activating vitamin D, even with supplementation. This can worsen conditions such as:
At Clínica Revitalize, we always seek to understand the root cause of problems. This discovery reinforces the importance of assessing not only blood vitamin D levels but also its metabolization and biological response.
If you have symptoms consistent with vitamin D deficiency, even while taking supplements, it may be time to look beyond the traditional test.
???? The medicine of the future is personalized. ???? And the key may lie in your genes.
Do you want to investigate your health in a deeper and more individualized way? Schedule an integrative assessment with the Revitalize team.
This content is part of Clínica Revitalize's commitment to translating science into accessible clinical practice — without losing rigor or depth.