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

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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.

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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.

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