Sunshine vitamin diminishes risk of colds, flu | Science News



Support credible science journalism.

Subscribe to Science News today.


Sunshine vitamin diminishes risk of colds, flu

People with asthma and other preexisting lung diseases face an especially exaggerated year-round risk from a deficiency

7:08pm, February 23, 2009

Getting plenty of vitamin D — more than diet can offer — appears to provide potent protection against colds, flu and even pneumonia, a new study reports. Although the amount of protection varies by season, the trend is solid: As the amount of vitamin D circulating in blood climbs, risk of upper respiratory tract infections falls.

Though that’s not too surprising (SN: 11/11/06, p. 312), the researchers found one unexpected trend: “In people with preexisting lung disease, such as asthma and chronic

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content