Vitamin C & Wounds

Vitamin C, or ascorbic acid, is a water-soluble vitamin that you need to get from the foods you eat. It also works as an antioxidant, aids immune system function, helps your body absorb iron, and is needed to metabolize proteins and for formation of brain chemicals. Vitamin C is also needed to form connective tissue, which is an important part of wound healing.

Vitamin C and Wound Healing

Vitamin C is needed for the conversion of proline and lysine to hydroxyproline and hydroxylisine, which stabilize the structure of collagen, which keeps connective tissue strong. It also provides flexibility to scar tissue so that the wound is less likely to tear. The antioxidant and anti-inflammatory properties of vitamin C may also promote healing. Vitamin C deficiency may result in impaired wound healing and longer healing time.

DRI for Vitamin C

The Institute of Medicine sets the dietary reference intakes based on age and gender. Children ages 1 to 3 years need 15 mg of vitamin C per day, and ages 4 to 8 need 25 mg. Children ages 9 to 13 need 45 mg per day. Teenage boys need 75 mg per day, and teenage girls need 65 mg per day. Adult males need 90 mg per day, and adult females need 75 mg per day. Pregnant women need 80 to 85 mg per day.

Foods With Vitamin C

Vitamin C is found primarily in fruits and vegetables. Citrus fruits, peppers, tomatoes and potatoes are the major sources of vitamin C in the American diet, according to the Institute of Medicine. Green and red peppers, broccoli, strawberries, and Brussels sprouts are also good sources. One-half cup of raw red pepper slices or three-fourths cup orange juice provides enough vitamin C for one day for men and women.

Vitamin C Supplements

Vitamin C is available as a dietary supplement. According to the Office of Dietary Supplements, it's safe to take at high levels, but high levels can result in diarrhea, nausea, abdominal cramps and other gastrointestinal complaints. Vitamin C supplements may increase the risk of certain types of kidney stones in people who have high levels of oxalate in their urine. Speak with your doctor before taking vitamin C supplements.