The common cold is a virus infection that affects the upper respiratory system. The National Center for Complementary and Alternative Medicine reports that symptoms of colds usually appear 1 to 3 days after exposure to the virus. Symptoms can include runny or stuffy nose, sore throat, cough, and sneezing. Antibiotics do not cure colds. Oftentimes, rest and good nutrition is advised in order to stop the continuation of colds. A well-balanced diet rich in vitamins may help to both prevent and treat symptoms of the common cold.
Vitamin D
A 2006 report in "Medical News Today" discussed the role of vitamin D in potentially preventing and relieving symptoms of colds and influenza. In this report, it is suggested that vitamin D doses of 5,000 units per day may prevents colds and the flu, while doses of 2000 units per kilogram of body weight over three days may treat people with influenza. The article states, however, that these findings are based only on theory and that more studies need to be conducted. Vitamin D is made naturally by the human body when exposed to sunlight. It may also be found in foods such as salmon and fortified milk.
Vitamin C
Vitamin C may play a role in the prevention and treatment of the cold. The National Center for Complementary and Alternative Medicine reports that evidence has been mixed. They do state, however, that vitamin C is an antioxidant that is generally considered to be safe. Side effects may occur, however, if taken in excess. Good dietary sources of vitamin C include oranges, limes, lemons, melon and broccoli. A supplement may also be taken.
Vitamin E
Vitamin E may aid in protecting you against viral infections that lead to the common cold. A research report by the Linus Pauling Institute in 2004 discusses that the use of vitamin E in protecting against viral infections has been mixed and more studies are necessary. Vitamin E is an antioxidant found in many dietary foods including vegetable oils, almonds, nut butters and avocado.
