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Vitamin D Deficiency Linked to Arterial Stiffness

According to a new study, vitamin D deficiency is associated with arterial stiffness, a risk factor for heart disease and stroke, in black teens. Vitamin D supplementation of 2,000 international units (IU) per day resulted in a decrease in central arterial stiffness.

In the study, 44 black teenagers were randomly assigned to receive either 400 IU of vitamin D per day (the recommendation of the American Academy of Pediatrics) or 2,000 IU of vitamin D per day.

Reuters reports:

"Study subjects taking 400 IU of vitamin D per day did not achieve vitamin D sufficiency, while their peers who took 2,000 IU of vitamin D per day on average became vitamin D sufficient."

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