Optimal vitamin D levels might help keep your muscles strong and preserve physical function into old age. Researchers looked at the relationship between vitamin D status and physical function in a group of relatively healthy seniors..
Those with the highest levels of 25-hydroxyvitamin D had better physical function -- and over the course of the 4-year study, those with they highest vitamin D levels maintained significantly higher physical function.
Eurekalert reports that:
“The scientists were not surprised to learn that, in general, vitamin D consumption was very low in this group of otherwise healthy seniors ... many were relying on dietary supplements.”