I get it from the sun, right?
Most people do not get enough sun exposure in the 21st century. Because of this, many people are deficient in vitamin D.
Made for you
The vitamin D receptor is found in 900 genes in the human body, an appreciable part of the human genome. The brain is filled with vitamin D receptors and proteins that are turned on by vitamin D.
The good stuff
Proper vitamin D levels may boost mood, support immunity, and build healthy bones.