Seniors With Highest Vitamin D Levels Show Maxed Vitality

New research shows seniors with higher levels of vitamin D demonstrate more youth and vitality as they enjoy longer life spans. 

A limited number of studies have pointed to the possibility that optimal intake of vitamin D (the “sunshine” vitamin) might help keep our muscles strong and preserve physical function. 

To help understand this diet-health association, researchers at Wake Forest University studied the relationship between vitamin D status and physical function in a group of relatively healthy seniors living in Memphis, TN and Pittsburgh, PA. 

Researchers studied 2788 seniors (mean age: 75 years) for 4 years. At the beginning of the study, they assessed vitamin D status by analyzing each person’s blood for 25-hydroxyvitamin D, a precursor for activated vitamin D. 

At baseline and then 2 and 4 years later, the research team then determined whether circulating 25-hydroxyvitamin D was related to the participants’ physical function. Specifically, they looked at how quickly each participant could walk a short distance (6 meters) and rise from a chair five times as well as maintain his or her balance in progressively more challenging positions. 

When the results were tabulated, participants with the highest levels of 25-hydroxyvitamin D had better physical function. And, although physical function declined over the course of the study, it remained significantly higher among those with the highest vitamin D levels at the beginning of the study compared to those with the lowest vitamin D levels. 

The scientists were not surprised to learn that, in general, vitamin D consumption was very low in this group of otherwise healthy seniors. In fact, more than 90% of them consumed less vitamin D than currently recommended, and many were relying on dietary supplements. 

The good news: higher circulating 25-hydroxyvitamin D is related to better physical function in seniors. But it’s impossible to tell from this type of research whether increasing vitamin D intake will actually lead to stronger muscles and preserve physical function. 

Will vitamin D research lead us to the fountain of youth?   ”Probably not,” says Jesse Slome, executive director of the American Association for Long-Term Care Insurance.  . “But paying attention to how much vitamin D we get is likely important at every age and will help enhance the “quality” component of life as we enter our senior years. “

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