body absorb calcium and plays an important role in maintaining healthy bones and muscles.
As people age, vitamin D levels can sometimes become lower. Older adults may spend less time outdoors, and the skin also becomes less efficient at producing vitamin D from sunlight.
Good dietary sources include fatty fish, egg yolks, and fortified foods. Some people may also need supplements if their vitamin D levels are low.
However, more is not always better. Excessive vitamin D supplementation can cause problems, so high-dose supplements should generally be taken only with
