Vitamin D improves mobility in older adults

Being able to walk and climb stairs strongly predicts who will be able to live independently longer, doctors said.

In one study, researchers first measured vitamin D levels in 2,099 adults, average age 75, who then took a quarter-mile walking test as well as a stair-climbing test. Every six months for the next six years, doctors assessed mobility. Doctors divided participants into three groups based on vitamin D levels and found that, compared to those with the highest levels of vitamin D—at least 75 nanomoles per liter of blood (nmol/L)—those with 50 to 74 nmol/L of vitamin D were 30 to 37 percent more likely to have limited or disabled mobility.

Those with less than 50 nmol/L of vitamin D were 62 percent more likely to have limited mobility, and 122 percent more likely to become disabled, doctors said.

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