D intake can also lead to deficient body phosphorus.

低的维他命d吸入也能导致不足的身体磷。

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Women with the highest vitamin D intake were 59 per cent less likely to develop the disease than those with the lowest.

与以最小摄入量摄入维他命D的女性相比，以最大摄入量摄入维他命D的女性患该疾病的风险减少了59%。

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Some adolescent girls aged 9-18 May fall below the daily recommended level of calcium intake, and some elderly people may have an inadequate intake of calcium and vitamin d.

年龄9 - 18岁的青少年女孩可能低于每天推荐的钙摄入水平，并且一些老年人可能钙和维生素d摄入不充分。

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The current tolerable upper limit of vitamin D intake is 50 mcg (2, 000 IU) per day.

CNN: How much vitamin D should someone over 55 take?

Dr. Rosen served on an Institute of Medicine panel that in 2010 recommended a daily vitamin D intake of at least 600 IUs for children and adults up to age 70.

WSJ: Vitamin D and Calcium Supplements May Not Stop Fractures

Because these studies are mainly observational, extensive research is under way to determine the causal relationship between vitamin D levels and disease as well as the role of increasing vitamin D intake.

CNN: How much vitamin D do I need?