Why Vitamin D Deficiency Is So Common (and What You Can Do About It)

Most people know vitamin D is important—but few are getting enough to actually support their health. Even if you spend time outside or take a basic supplement, your levels may still be too low to be effective.

What Makes Vitamin D Different?

Unlike most vitamins, vitamin D isn’t found naturally in many foods. Your body relies on sunlight (UVB rays) to make it in the skin. That means factors like season, latitude, skin tone, sunscreen, and time spent indoors all have a major impact.

In Canada, the sun isn’t strong enough for vitamin D production during the fall and winter months—making deficiency extremely common.