Vitamin D May Help Slow Cellular Aging, Study Finds

Every morning, millions of people take a vitamin D supplement, thinking mostly about stronger bones and a healthier immune system. However, quietly, at the cellular level, something else may be happening—something that could change how we think about aging.FotoHelin/ShutterstockA long-running study recently found that people who took daily vitamin D supplements for four years had slightly less shortening of their telomeres—a marker linked to cellular aging—than those who didn’t.While experts caution that the real-world health benefits remain unclear, the findings could shed light on the protective effects of vitamin D on specific aging-related diseases, the study authors noted.A Small but...