Going out in the cold won't necessarily lead to you getting a cold. But cold weather in general is more hospitable to viruses, so it's wise to take steps to keep your immune system strong.
Fortifying essential food with sensible amounts of vitamin D is a cheap intervention that will have a small but important benefit.
As we are now approaching a long, dark, socially-isolated winter in the UK, adequate vitamin D supplementation has never been more important.
A light invisible to humans makes chemicals in our skin very excited. In fact, the chemicals become so excited they change shape and become vitamin D.
There is a relationship between vitamin D and COVID-19, but taking too many supplements can be toxic.
Early research has pointed to a link between severe illness with COVID-19 and vitamin D deficiency. But there's more to the story.
Too much ultraviolet radiation is dangerous for human health. Excessive exposure can cause skin ageing and sunburn and can induce melanoma, cataracts, ocular melanoma, and immunodeficiency.
The food we eat influences our bodies' immune responses to infection. So focusing on nutrition is one thing we can do to help protect ourselves in the face of the coronavirus threat.
Vitamin D is essential for good health and particularly for fighting infections and keeping the microbes in the human gut healthy. But in winter it can be difficult to get enough.
Vitamin D shows promise in treating COPD in people who are deficient in the vitamin.
You need far less sun than you think you do.
A new study points to a clear link between childhood arthritis and abnormally low levels of vitamin D, especially ion northern countries.
A strong case for telling children to go outside and play.
UV ratings indicate risk of skin damage – but they're based on pale skin. New wrist bands designed for six different tones of skin provide a more personalised way to track safe UV exposure.
Largest ever clinical study shows no benefit of vitamin D in preventing bone fractures.
Vitamin D could help the 20m children worldwide who suffer from acute, severe malnutrition.
Autism and vitamin D: an in-depth look at what the new study actually found.
There's some logic in eating and avoiding certain foods if you have endometriosis. And there are some studies that confirm this logic, but then others seem to refute it. And everyone is unique too.
Six scientists on the supplements they take every day and why they take them.
Kids need to play outside for a number of reasons, but there may even be benefit for their eyes. Here's how sunlight helps prevent nearsightedness, or myopia.