Key result
Butterfly pea flower tea lowers systolic blood pressure by ~28 mmHg in grade I hypertension.
Why the study?
The effectiveness of butterfly pea flower extract tea in reducing blood pressure in grade I hypertension patients was analyzed.
Does butterfly pea flower extract tea reduce systolic and diastolic blood pressure in patients with grade I hypertension?
Does butterfly pea flower extract tea reduce systolic and diastolic blood pressure in patients with grade I hypertension?
Standardized Mean Difference: 4.34
Absolute Event Rate: 28.3% vs 0.867%
p-value: p=0.000
Consumption of butterfly pea flower extract tea for 14 days significantly reduced systolic and diastolic blood pressure when added to standard therapy in patients with grade I hypertension.
May support adjunctive butterfly pea tea in grade I hypertension on therapy; leaves open need for larger RCTs before practice change.
This study aims to analyze the effectiveness of butterfly pea flower extract tea (Clitoria ternatea) in reducing blood pressure in sufferers of grade I hypertension. The research method employed was a quasi-experimental design with a pre-post test and a control group. The results showed that the intervention group experienced an average reduction in systolic blood pressure of 28.3 mmHg (p = 0.000) and diastolic blood pressure of 11.7 mmHg (p = 0.000). In the control group, there was a decrease in systolic blood pressure of 0.867 mmHg (p = 0.219) and diastolic blood pressure of 0.367 mmHg (p = 0.469). Administration of butterfly pea flower extract was proven to be effective in reducing systolic blood pressure by 81% and diastolic blood pressure by 87% (p=0.000). The conclusion is that drinking butterfly pea flower extract powder tea for 14 days can effectively reduce systolic and diastolic blood pressure in patients with grade I hypertension.
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Azizah et al. (2025) studied Grade I Hypertension (n=32). Butterfly pea flower extract tea (Clitoria ternatea) vs. Antihypertensive medication alone was evaluated on Reduction in systolic blood pressure (Cohen's d 4.34, p=0.000). Butterfly pea flower extract tea administered for 14 days significantly reduced average systolic blood pressure by 28.3 mmHg and diastolic blood pressure by 11.7 mmHg in patients with grade I hypertension.
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