Vitamin D
Key facts Vitamin D maintains bone health. This vitamin helps your body to absorb dietary calcium. It also regulates the amount of calcium in your blood and strengthens your bones. People get most of their vitamin D from the sun. If you don’t spend time outdoors or are mostly covered up when outdoors, you may need a vitamin D supplement. What is vitamin D? Vitamin D is a fat-soluble vitamin that is very important for bone health. It helps your body to absorb calcium from food. It also regulates the amount of calcium in your blood and strengthens your skeleton.