What is vitamin D and what does it do? Vitamin D is a nutrient you need for good health. It helps your body absorb calcium, one of the main building blocks for strong bones. Together with …

Mar 21, 2025 · Vitamin D is a nutrient the body needs, along with calcium, to build bones and keep them healthy. The body can absorb calcium only if it has enough vitamin D. Calcium is a …

Oct 25, 2024 · Vitamin D (calciferol) keeps bones strong and supports your immune system. People ages 1 to 70 need 15 mcg (600 IU) per day; people 70+ need 20 mcg (800 IU).

Unlike the other twelve vitamins, vitamin D is only conditionally essential, as with adequate skin exposure to the ultraviolet B (UVB) radiation component of sunlight there is synthesis of …

Jul 17, 2025 · Vitamin D has several important functions within the body, but it is primarily known for its role in calcium homeostasis and promoting calcium absorption. Hence, it is a vital …

It is a fat-soluble vitamin that has long been known to help the body absorb and retain calcium and phosphorus; both are critical for building bone. Also, laboratory studies show that vitamin …

Vitamin D is a fat-soluble vitamin. Fat-soluble vitamins are stored in the body's fatty tissue and liver. Vitamin D helps the body absorb calcium. Calcium is a mineral that you must have for …

5 days ago · Explore what vitamin D does, including bone health support, immune function, and calcium regulation for overall wellness.

Feb 5, 2024 · Vitamin D plays a critical role in many bodily functions. Vitamin D promotes calcium absorption and helps maintain adequate levels of calcium and phosphorus in the blood, which …

Feb 28, 2025 · Vitamin D is essential for immune system function and bone health and may influence. It may also influence mood regulation and reduce the risk of several chronic health …