Vitamin C reduces the duration of colds and cuts the chances of catching a cold by half
Learn about the vitamin C dosage in over 31 studies that cleared up colds quicker
by Newsletter Editor
Doctors reviewed 31 cold studies covering 9,745 cold episodes, where people took at least 200 mg of vitamin C per day, or a placebo. Overall compared to placebo, for adults who took vitamin C, the duration of colds was 8 percent shorter, and for children, 14 percent shorter. In children who took doses of 1,000 mg to 2,000 mg of vitamin C per day, colds cleared up 18 percent quicker.
In five studies involving 598 marathon runners and skiers who were exposed to extreme physical stress, compared to placebo, vitamin C cut the chances of colds by half.