Vitamin D is a nutrient that is essential for good health. It helps your body absorb calcium and phosphorus, and it helps to keep your bones and teeth strong and healthy.
There are several ways to get vitamin D. The best way is to expose your skin to sunlight. Your body can make vitamin D from cholesterol when your skin is exposed to sunlight. You can also get vitamin D from food and supplements.
Vitamin D is found in fatty fish, such as salmon, and in eggs. You can also get it in fortified milk and cereals. Some people take a vitamin D supplement to make sure they’re getting enough of the vitamin.
When you lack vitamin D, you may experience fatigue, muscle weakness, or bone pain. You may also be at increased risk for falls and fractures. Without enough vitamin D, your bones can become thin, brittle, or misshapen.