Humans can not synthesize vitamin themselves. They need to eat more fruits and vegetables so that the body gets vitamin. Vitamin C helps in the resistance to heart disease. With antioxidants, help prevent cataracts. It also helps with memory. Vitamin C is found in citrus fruits, green vegetables, potatoes, lemon and hence the population is so often mistaken for fruit with a sour taste. Vitamin C, which, in fact, what makes the fruit is sour because acid is the acid solution containing sour. The vitamin C is tart flavor. The group's study was the comparison of acidity - bass, and the concentration of vitamin C in the fruit. As an alternative to the consumer.