Sunny Vitamin D
When you think of vitamin D, you probably think about enjoying being outside in the sun because it makes sense since our bodies create vitamin D when our skin is exposed to sunlight. It’s well known for helping the body absorb calcium and build strong, healthy bones. But did you know that it has another important function? Vitamin D also plays a key role in fighting disease. It’s one of the building blocks of a healthy, strong immune system.
Studies show that vitamin D is particularly adept at helping our bodies fight off respiratory viruses, such as seasonal flu and even COVID-19.
Where exactly do humans get vitamin D?
The best (and most well-known) source of vitamin D is the sun. When our skin is exposed to the sun’s ultraviolet B (UVB) rays, a chain of reactions occurs within the skin’s cells that cause the body to manufacture vitamin D. It’s…




