Key result
Robusta coffee intake is linked to an ~8 mmHg acute rise in adolescent SBP and DBP.
Why the study?
Although caffeine is known to elevate blood pressure, the effect of coffee consumption has varied across studies.
Does 200 ml of Robusta coffee acutely increase systolic and diastolic blood pressure in normotensive late adolescents?
Cross-Sectional (n=16)
No
Does 200 ml of Robusta coffee acutely increase systolic and diastolic blood pressure in normotensive late adolescents?
Absolute Event Rate: 8.4% vs 0.8%
p-value: p=<0.01
A single 200 ml cup of Robusta coffee acutely increases systolic and diastolic blood pressure by approximately 8 mmHg in normotensive late adolescents.
Acute BP rise after Robusta coffee in normotensive adolescents is hypothesis-generating; larger prospective studies needed before clinical adoption.
Introduction: Caffeine has been known to elevate blood pressure. However, the effect of drinking coffee on blood pressure varied among studies. This study examines the impact of coffee on the acute response of blood pressure in a late adolescent with normal blood pressure. Method: This cross-sectional study with a cross-over design involving 16 male and late female adolescents. The intervention group subjects drank a glass of 200 ml of Robusta coffee (commercial brand), while the control group drank plain water. After a 7-day washout, the intervention group became the control group and vice versa. A paired t-test was applied to evaluate systolic blood pressure (SBP) and diastolic blood pressure (DBP) before and after the intervention. The significance was set at p<0.05. Results: SBP and DBP in the control group were unchanged (Δ0.8 and 0.6 mmHg, p=0.237 and 0.584, respectively). SBP and DBP in the intervention group were significantly elevated (Δ8.4 and 8.1 mmHg, p<0.01 and <0.01, respectively). Discussion: Our findings demonstrated that coffee increases SBP and DBP significantly in the late adolescent with normal BP. Increased sympathetic tones and blocking adenosine receptors are suggested to increase BP. However, some limitations were also found, so the results should be interpreted carefully. Conclusion: A 200 ml coffee (Robusta) increased SBP and DBP in late adolescents with normal blood pressure.
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Tandiono et al. (2023) conducted a cross-sectional in Normotension (n=16). Robusta coffee vs. Plain water was evaluated on Change in systolic blood pressure (SBP) (p=<0.01). Drinking 200 ml of Robusta coffee significantly increased systolic blood pressure by 8.4 mmHg and diastolic blood pressure by 8.1 mmHg in normotensive late adolescents.
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