The RDA for vitamin D increases with age.

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Multiple Choice

The RDA for vitamin D increases with age.

Explanation:
Vitamin D needs rise as we age because the body's ability to produce and activate vitamin D declines and bone health becomes more at risk. With aging, the skin makes less vitamin D, the kidneys and liver may be less efficient at converting it to the active form, and dietary intake may not keep up with demand. To compensate, guidelines set higher daily amounts for older adults. For most people, the RDA is about 600 IU daily up to age 70, and increases to 800 IU daily for those over 70, reflecting the higher risk of deficiency and the need to support bone health in later life.

Vitamin D needs rise as we age because the body's ability to produce and activate vitamin D declines and bone health becomes more at risk. With aging, the skin makes less vitamin D, the kidneys and liver may be less efficient at converting it to the active form, and dietary intake may not keep up with demand. To compensate, guidelines set higher daily amounts for older adults. For most people, the RDA is about 600 IU daily up to age 70, and increases to 800 IU daily for those over 70, reflecting the higher risk of deficiency and the need to support bone health in later life.

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