Beetroot juice is safe and nutritious, but experts say it shouldn’t replace lifestyle changes and medications for high blood pressure. A Deeper Look at Beetroot Juice and Blood PressurePrevious research has suggested that beetroot juice, also known simply as beet juice, may help lower blood pressure. After being assigned to either a placebo beetroot juice group or a nitrate-rich beetroot juice group, all participants drank about 2.5 ounces of their assigned juice twice daily—once in the morning and once in the evening—for three separate two-week periods. Compared to a placebo, nitrate-rich beetroot juice had a greater effect on blood pressure, but only in one group with high blood pressure: older adults. If you have high blood pressure, beetroot juice might sound pretty appealing right now.