Vitamin C & Chronic Bronchitis

Chronic bronchitis is the long-term inflammation of the bronchi characterized by prolonged cough with mucous. It may frequently lead to severe respiratory tract illnesses and shortness of breath. To be classified as chronic, the bronchitis symptoms should last for at least three months per year, two years in a row, Ohio State University Medical Center says. Cigarette smoking is the most common cause of chronic bronchitis, closely followed by infections and pollution. Treatment generally involves medications, oxygen therapy and surgery. Certain supplements such as vitamin C may also help manage the condition.

About Vitamin C

Vitamin C, or ascorbic acid, is a water-soluble vitamin that plays an important role in the formation of collagen, a protein found in skin, blood vessels, ligaments and tendons. It also helps in healing wounds and is a powerful antioxidant with the ability to neutralize the unstable free radicals formed due to various metabolic processes in the body. MedlinePlus recommends 15 to 90 mg of the vitamin per day, depending on your age and overall health. Citrus fruits, strawberries, cantaloupes, green peppers, tomatoes and watermelon are good sources of the vitamin. You can also obtain it from natural and synthetic supplements.

Link Between Chronic Bronchitis and Vitamin C

Individuals who take vitamin C have a 70 percent less chance of getting chronic respiratory conditions such as asthma and bronchitis than those who don't, according to John D. Kirschmann, author of the book "Nutrition Almanac." Smokers, however, may need three times as much vitamin C as others, the author says. A study published in the November 2008 issue of the "Journal of Inflammation" has also revealed that moderately large doses of vitamin C can help prevent lung damage from cigarette smoke.

Side Effects

No side effects have been reported due to vitamin C from dietary sources. Its toxicity is also rare, as the body does not store the unused vitamin. However, MedlinePlus states that consuming more than 2,000 mg of the vitamin per day may lead to upset stomach and diarrhea. It may also interfere with certain pain medications, chemotherapy drugs and oral contraceptives.

Precautions

Always talk to a doctor before taking vitamin C supplements to avoid possible side effects and complications. The vitamin is a diuretic, so drink plenty of water while taking the supplements. It also increases the absorption of iron in the body. Hence, individuals with hemochromatosis should avoid vitamin C, according to the University of Maryland Medical Center. People with kidney problems should use the supplements only under the supervision of a doctor.