Health
Here's How Long It Takes Vitamin D to Work in Your Body

Vitamin D helps keep your bones strong, your heart healthy, your immune system tough, your mood light, and so much more—in fact, one 2020 study in the Journal of the American Medical Association even found that more than 80 percent of people hospitalized for COVID-19 had low vitamin D. Dietitians clarify the healthiest ways to get your levels right on track.