Everyone knows vitamin C is important and can be obtained from citrus fruits. However, most folks don't know that vitamin C helps prevent allergies and fatigue! It also helps heal cuts, scrapes, burns, and broken bones, it helps keep your gums healthy, and helps your body form collagen.
The wonderful C is easily obtained from citrus fruits(duh), as well as berries, papayas, cantaloupes, tomatoes, broccoli, raw cabbage, brussel sprouts, and green peppers. In order to prevent a vitamin C deficiency you need to have some in your diet every day. Be careful not get too much at once, or you might get diarrhea! That would be bad. However, your body loves Vitamin C and unless you take A LOT at once then you will be fine.
Without enough C in your diet you are more susceptible to infections, and(of course) a deficiency. Deficiency symptoms are: Bruises( that you don't know where they came from), Bleeding gums, infections, and scurvy. Like vitamin B, a vitamin C deficiency is fairly rare in the USA, but the saying goes, an ounce of prevention is worth a pound of cure!