The camu berry is best known for its unusually high vitamin C content. Vitamin C, as you may know, has many uses for preventing chronic disease. Natural (not synthetic) vitamin C is an antioxidant that prevents free radical damage to the DNA of the cells throughout your body, which helps in the prevention of cancer and heart disease (among other health problems). Vitamin C also prevents colds and even the flu. It is a huge immune system booster and an all-around power-packed vitamin -- but only in its full-spectrum natural form.