The juice of a single pomegranate has more than 40 percent of your daily requirement of vitamin C. Vitamin C can be broken down when pasteurized, so opt for homemade or fresh pomegranate juice to get the most of the nutrient.Pomegranate juice recently made a splash when researchers found that it may help stop the growth of prostate cancer cells. Despite multiple studies on the effects of the juice on prostate cancer, results are still preliminary.