Vitamin D is essential for strong bones, a healthy immune system, and keeping your nerves and muscles working well. Now, researchers have discovered a gene that may make it even more powerful — especially when it comes to fighting cancer.

 A new study found that a gene called SDR42E1, which helps the body absorb and process vitamin D.  When scientists turned this gene off in cancer cells, the cells weakened and stopped growing as quickly. The findings suggest that targeting this gene could lead to new cancer treatments that leave healthy cells unharmed.

Experts believe this discovery may open the door to better treatments for cancer,  autoimmune diseases, and conditions tied to low vitamin D. For now, it’s one more reason to prioritize this essential nutrient—and understand how your genes influence how your body uses it.