EFFECT OF CAFFEINATED AND DECAFFEINATED COFFEE ON BLOOD PRESSURE

Tahira Khurram, Samina Khanum, Asma Nadeem, Usama Kiran, Rashida Kazmi, Ummara Rasheed

Abstract

The world's most popular stimulant, caffeine, accounts for 80% of all caffeine consumption. It is widely used as a component in pharmaceuticals due to its high antioxidant and nutrient content, including phenol and polyphenol. In the presence of caffeine, drinks are categorised as caffeinated and decaffeinated. The present study was conducted to evaluate the effect of caffeinated and decaffeinated coffee on blood pressure among the young generation. This experimental study was conducted on 85 healthy individuals (both male and female, non-hypertensive) between 18-28 years of age. Blood Pressure (BP) was measured by an automatic
digital blood pressure monitor, before and after taking of coffee in 30, 60, and 90 minutes. Each participant ingested 100 mL of coffee prepared from 50 mg of caffeinated coffee in water. The consumption time of each individual was between 2- 4 minutes. It was noticed almost 65.7% participants were found normal. While a
significant difference were noticed in systolic blood pressure (SBP) and diastolic blood pressure (DBP) after the intake of caffeinated coffee at p-value (<0.001) by Friedman test. An increase of 4.4 mmHg and 5.02 mmHg was found in systolic blood pressure after 60, and 90 minutes respectively from the normal that is <20mm Hg. It
was concluded by the study that individual responses were varied, particularly an increase in BP after taking caffeinated coffee Some people might be more sensitive to caffeine and feel its effects more strongly, while its effects are quite normal for others.