Which of the following conditions or diseases are known to be caused by a deficiency of vitamin D?

Which of the following conditions or diseases are known to be caused by a deficiency of vitamin D?

Vitamin D deficiency can lead to a loss of bone density, which can contribute to osteoporosis and fractures (broken bones). Severe vitamin D deficiency can also lead to other diseases. In children, it can cause rickets. Rickets is a rare disease that causes the bones to become soft and bend.

Which of the following is most likely to occur from a prolonged deficiency of vitamin A?

Vitamin A deficiency can lead to blindness, skin disease and growth retardation in children.

Which of the following does the body use to synthesize vitamin D?

While it can also be obtained from dietary sources or supplements, vitamin D3 (cholecalciferol) is synthesized in the human skin from 7-dehydrocholesterol upon exposure to ultraviolet-B (UVB) radiation from sunlight (see the separate article on Vitamin D and Skin Health).

What are the symptoms of vitamin D deficiency in adults Mayo Clinic?

Severe and prolonged vitamin D deficiency is known to cause bone mineralization disorders such as rickets in children and osteomalacia in adults. Conditions such as these can lead to soft bones, aching muscles, painful movement and fractures. Vitamin D deficiency also may contribute to osteoporosis.

Which of the following may result from excessive intakes of vitamin D by adults group of answer choices?

The main consequence of vitamin D toxicity is a buildup of calcium in your blood (hypercalcemia), which can cause nausea and vomiting, weakness, and frequent urination. Vitamin D toxicity might progress to bone pain and kidney problems, such as the formation of calcium stones.

Who is at risk for vitamin D deficiency?

For most adults, vitamin D deficiency is not a concern. However, some groups — particularly people who are obese, who have dark skin and who are older than age 65 — may have lower levels of vitamin D due to their diets, little sun exposure or other factors.

Which body system is responsible for the regulation and synthesis of vitamin D?

The liver and kidneys convert vitamin D (produced in the skin and taken up in the diet), into the active hormone, which is called calcitriol. Active vitamin D helps to increase the amount of calcium the gut can absorb from eaten food into the bloodstream and also prevents calcium loss from the kidneys.

How does body process vitamin D?

But vitamin D is also produced by the body in a complex process that starts when rays in the invisible ultraviolet B (UVB) part of the light spectrum are absorbed by the skin. The liver, and then the kidneys, are involved in the steps that eventually result in a bioavailable form of the vitamin that the body can use.