A form of vitamin D can calm down immune cells when they overreact to bacteria by turning off a key inflammation signal, which helps produce a protein that puts the brakes on the immune response.

A form of vitamin D can calm down overactive immune cells in the body by turning down a specific molecule that causes inflammation, which helps the body produce a protein that reduces swelling and irritation.

Vitamin D helps calm inflammation in certain immune cells by stopping a specific switch in the cell’s DNA from turning on a molecule that causes inflammation.

When your body uses vitamin D properly, it helps calm down your immune system by turning off genes that cause inflammation, which can make you feel less swollen or sore.

When scientists removed a tiny gene regulator called miR-155 from mice that lacked vitamin D receptors, the mice’s immune systems didn’t go into overdrive anymore. This suggests that too much of this gene regulator is what makes the inflammation worse when vitamin D is low.