Functional food is food that is naturally or through a process that is beneficial to health. One functional food is a green bean juice packaging beverage that can reduce blood glucose levels. High fiber content, low glycemic index and flavonoids, and polyphenols in green beans (Phaseolus radiatus L) can reduce glucose levels in the blood. This study used experimental animals 7 tails. All experimental animals were given packaged mung bean juice 2 times a day for 9 days by means of a round. The mean results of an examination of blood glucose levels in white rat experimental animals before giving packaged green bean juice drinks was 85 mg dl, while the average results of an examination of blood glucose levels in experimental rats after administration of packaged green bean juice were 75 mg/dl. The results of the Paired T-test statistical test obtained p = 0,000 <α = 0.05. Packaged green bean juice can reduce blood glucose levels in animals testing white rats.