Research published in the American Journal of Clinical Nutrition (November 2007) examined the relationship between vitamin D status and biological aging. The study measured telomere length in 2,160 women between the ages of 18 and 79 and compared the findings to each participant’s vitamin D levels.
Telomeres are the protective caps at the ends of chromosomes, and they naturally shorten as we age. Shorter telomeres are associated with accelerated aging and increased disease risk, while longer telomeres are considered a marker of healthier, slower cellular aging.
The researchers found that women with higher serum vitamin D levels had significantly longer telomeres than women with lower levels of the vitamin. These results suggest that adequate vitamin D status may support healthier aging at the cellular level.
