Efficacy, citrus fruit juice, especially orange and orange juice flavonoids can effectively inhibit the proliferation of breast cancer, lung cancer and other cells. Regular consumption of orange juice can also help prevent some chronic diseases, maintain heart function and lower blood pressure. Studies have shown that drinking three glasses of orange juice a day can increase the amount of high-density Lipoprotein in the body and reduce the risk of heart disease. In addition, while taking medicine to eat some oranges or drink orange juice, can increase the body’s absorption of drugs, thus doubling the effectiveness of the drug.