See the Benefits of Vitamin C
Vitamin C also helps the body absorb iron, so for anemia, it's a valuable supplement. It's estimated that only about 10 to 20 percent of adults eat the recommended nine servings of fruits and vegetables a day.
A good supplement will provide the rest of that vitamin C, but more isn't necessarily better. While it's tough to overdose on vitamin C because the body excretes the excess, 500 milligrams or more may irritate the stomach.