Lack of Vitamin D - Definition

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Definition

The main function of vitamin D is to allow better intestinal absorption of calcium and to integrate it into the bones to strengthen them. Vitamin D is obtained both by diet and by exposure to natural sunlight.

A significant lack, or deficiency of, vitamin D has a major impact on adults, including weakened, brittle bones. In children, this can lead to rickets, a condition that causes impaired growth and bone deformities.

Vitamin D supplements are frequently available in capsule form. For those who are unable to ingest pills, vials for drinking also exist.