It takes about two days to get a cold after exposure to the virus. In this video, Larry Gooss, DO, a family practice doctor at Chippenham & Johnston-Willis Hospitals, explains how virus can continue to live on surfaces.
A RealAge answered. To prevent vitamin C deficiency, government guidelines recommend a daily dose of 90 milligrams (mg) for men, 75 mg for women. We recommend that you get 1,200 mg of vitamin C per day from food and supplements. This higher amount not only prevents deficiency but also helps prevent disease and needless aging.
Dosages for Adults. Men older than 18 should take 90 milligrams of vitamin C per day, MayoClinic.com reports. Women who are older than 18 years old need to take 75 milligrams a day.If you are pregnant, you need 85 milligrams a day, and if you are a breastfeeding mother, you need 120 milligrams a day.osages for Adults. Men older than 18 should take 90 milligrams of vitamin C per day, MayoClinic.com reports. Women who are older than 18 years old need to take 75 milligrams a day.