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Comparative Study to Assess the Effects on Blood Pressure of Drinking Green and Black Tea among Hypertensive Patients

P Meena1, Meenakshi Jayakumar2

  • 1Department of Child Health Nursing, Saveetha College of Nursing, SIMATS, Chennai, Tamil Nadu, India.

Journal of Pharmacy & Bioallied Sciences
|September 30, 2024
PubMed

Insights

Green tea significantly reduced blood pressure (BP) in hypertensive patients more effectively than black tea. This study compared the effects of green tea and black tea consumption on BP levels in individuals with hypertension.

Area of Science:

  • Cardiovascular Health
  • Nutritional Science
  • Public Health

Background:

  • Hypertension is a global public health concern, increasing risks for heart, brain, and kidney diseases.
  • Managing blood pressure is crucial for preventing severe health complications.

Purpose of the Study:

  • To evaluate the impact of green tea and black tea on blood pressure (BP) in hypertensive patients.
  • To compare BP levels between hypertensive patients consuming green tea versus black tea.
  • To explore associations between tea consumption effects and demographic variables.

Main Methods:

  • A quasiexperimental study involving 60 hypertensive patients.
  • Participants were divided into two groups: 30 consuming black tea and 30 consuming green tea.
  • Data collected via structured questionnaires on demographics and biological parameters.

Main Results:

  • A statistically significant difference in post-test systolic and diastolic BP was observed between the groups (P < 0.01).
  • Student's independent t-test indicated significant reductions in BP levels post-intervention.

Conclusions:

  • Green tea demonstrated superior efficacy compared to black tea in reducing hypertension levels.
  • Findings suggest green tea as a potentially more effective dietary intervention for managing hypertension.

Keywords:
Black teablood pressureeffectsgreen teahypertensivepatients

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