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Learn more about Vitamin C from our online encyclopedia.

Did You Know?

Vitamin C—the great defender

Vitamin C delivers a potent boost for your body’s defenses, according to researchers at the University of Texas Health Sciences Center. A recent study tracked the immune systems of 12 healthy subjects who took one gram of vitamin C a day for two weeks. In each of those cases, results showed heightened immune system function. Moreover, in a closer look at four of those patients, two subjects’ immune systems responded to the vitamin C in as little as five hours. Researchers indicate it might mean that taking a vitamin C tablet at the first sign of trouble could work quickly enough to keep you feeling your best.

WebMD.com