Vitamin D is featured in a duo of revised recommendations, one regarding appropriate daily reference intakes for this nutrient and the other focusing on its role in preventing falls in the elderly.

First, the Institute of Medicine (IOM) has new recommendations for daily reference intakes for vitamin D and calcium across all. Taking into account nearly 1,000 published studies and testimony from scientists and stakeholders, it was determined that most Americans up to age 70 years need no more than 600 IUs of vitamin D per day to maintain health. Those aged 71 years and older may need as much as 800 IUs/day due to potential physical and behavioral changes related to aging. According to the IOM, national surveys of blood levels of vitamin D show that most Americans are getting enough of both this nutrient and calcium.

In terms of fall prevention in persons aged 65 years and older, the United States Preventive Services Task Force has drafted a revised recommendation that touts vitamin D supplements and exercise as the best ways to reduce the risk of falls in this population.

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