In ancient medicine, many of the recipes rely on it heavily and people but the direction towards modernity and sophistication made them dependent on the treatments and chemical compounds.
Citric acid which is one of the main components in citrus as well as many other fruits and vegetables is a well known natural antioxidant. Its role in preventing cancer came from this property because oxidation processes and the free radicals which are produced by it are accused for triggering the cascade of changes that ends with malignancy. Therefore, vitamin C could play vital rules in supporting the immune system against oxidation stress and this could be reflected on improving the general health not only cancer fighting. This goal could be easily realized by consuming more natural and less processed foods.