Frailty is a condition characterized by weakness, slowness, physical inactivity, self-reported exhaustion, and unintentional weight loss. Past research has shown that low vitamin D levels are associated with an increased risk for frailty among older adults. In a recent study, researchers observed that mice given a supplement to achieve and maintain vitamin D levels at the higher end of the healthy range were significantly less likely to become frail than those with low vitamin D status. Nutrients, October 2020