Figure 2.

Effect of dietary inorganic nitrate supplementation (with beetroot juice) on mean resting systolic blood pressure from HFpEF and HFrEF studies published previously. See Table 1 and text for additional information. The following HFpEF studies were not included: Zamani et al. (31), no available resting systolic blood pressure data; Shaltout et al. (44), no within-subject data comparison (i.e., control vs. inorganic nitrate) preexercise training; and Borlaug et al. (45), protocol used inhaled (nebulized) nitrite. The following HFrEF study was not included: Coggan et al. (50), no available resting systolic blood pressure data. Standard deviation/error bars omitted for clarity. *P < 0.05 vs. control.