In a study in Tanzania among older adults (average age 60) with high blood pressure (average blood pressure 152/92 mm Hg), drinking 70 mL (about ¼ cup) of concentrated beetroot juice providing about 400 mg nitrate (Beet It shots, James White Ltd) daily for 60 days modestly decreased blood pressure. Average systolic pressured decreased 10 mm Hg (vs. 0.3 mm Hg with placebo) and diastolic pressure decreased 5.4 mm Hg (vs. an increase of 1.6 mm Hg with placebo). Although some evidence suggests that folic acid may play a role in endothelial function and/or reduce blood pressure in some people, those who took folic acid (5 mg/day) in addition to the beetroot juice had smaller and non-significant decreases in systolic and diastolic blood pressure compared to those who drank beetroot juice only (Siervo, J Nutrition 2020).