What is it? Vitamin C is a water-soluble vitamin that has a number of biological functions.
Where is it found? Broccoli, red peppers, currants, Brussels sprouts, parsley, potatoes, citrus fruit, and strawberries are good sources of vitamin C.
Why do athletes use it? Some athletes say that vitamin C helps keep the immune system functioning optimally. decreases recovery time between workouts.
What do the advocates say? Vitamin C is important for connective tissue repair. Although beneficial to athletes participating in a variety of sports, vitamin C is especially important to body builders whose training causes the most connective tissue damage.
Vitamin C is also important to athletes because, as an antioxidant, it may help to reverse some of the oxidative damage that may occur from exercise. This oxidative damage, caused by free radicals, may interfere with the cells’ ability to function normally and is believed to play a role in many different health conditions, including the aging process, cancer, and heart disease. Vitamin C promotes a healthy immune system and may help to prevent the dip in immune function that may occur right after exercise.
(another brief article from WholeFoods)
Personally, I take the emergen-C Raspberry flavor.