Can Vitamin D Help Protect against COVID?

From the early days of the COVID-19 pandemic, researchers examining the question of why some people were better protected from the infection than others began to look at a possible role for vitamin D. The nutrient, which is obtained from food and exposure to sunlight, is known to contribute to a well-functioning immune system in a variety of ways, including defending the body from invading viruses and other pathogens. “Vitamin D is cheap, easily available and relatively safe,” says genetic epidemiologist Fotios Drenos of Brunel University London. Investigating whether the vitamin could make a difference in COVID patients “was an important question to ask,” he says.

Read more in Scientific American