Maintaining adequate vitamin D levels is important, regardless of the COVID-19 pandemic. In Australia, almost 25% of the population is vitamin D-deficient, and those at greatest risk include the elderly, people who are house or hospital-bound, people with darker skin, people with certain conditions , such as obesity and inflammatory bowel conditions, and those who take medications, such as antiepileptics, that may affect the way the body makes and stores vitamin D. If you are concerned about your vitamin D levels, speak to your GP for guidance.
Vitamin D is produced by the skin on exposure to sunlight. The lockdown restrictions during the pandemic mean that many people are probably spending more time indoors than usual. To make sure you get enough vitamin D, you need to spend around 15–20 minutes outdoors every day when the UV index is low (usually before 11 am and after 4 pm).
There has been research emerging about the potential of vitamin D to protect those with COVID-19 against poor outcomes. We will have more information about this, based on the latest research, soon.
If you are not deficient in vitamin D, taking supplements is unlikely to do you any good or to protect you against COVID-19.