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.
When your diet lacks vitamin C, youâll feel fatigued and could have muscle weakness. Your body doesnât have a way to store vitamin C because it's water soluble; thus, itâs a nutrient you want to take every day -- 75 milligrams daily for women and 90 milligrams for men.