What Is Vitamin D?
Vitamin D is a nutrient that helps the body take in calcium from the foods we eat.
What Does Vitamin D Do?
Calcium and vitamin D build bones and keep them strong. Vitamin D also plays a part in heart health, fighting infection, and helping bones heal after an injury or surgery.
Where Does Vitamin D Come From?
The Sun
Our bodies make vitamin D when our skin is exposed to the sun. But getting enough vitamin D from sunlight can be tricky. Most kids and adults spend lots of time indoors at school and work. Plus, the amount of vitamin D we can get from the sun is affected by the time of the year, weather, and even pollution. And when we're outdoors, it's important to protect skin to prevent skin cancer and skin damage from too much sun exposure.