NCT07002307

The Effect of Honey-sweetened Coffee, Black Tea and Green Tea on Some Physiological Parameters

The Effect of Honey-sweetened Coffee, Black Tea and Green Tea on Blood Pressure, Heart Rate and Blood Glucose

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 70 (actual)
• Sponsor: University of Uyo Teaching Hospital · Academic / Other
• Sex: Female
• Age: 18 Years – 26 Years
• Healthy volunteers: Accepted

Summary

The goal of this clinical trial is to investigate whether a three-day consumption of honey-sweetened black tea, green tea, and coffee will have an effect on blood pressure, heart rate, and blood glucose. The main questions it aims to answer are: Does honey-sweetened black tea, green tea, and coffee, respectively, have the ability to influence blood pressure, heart rate, or blood glucose level? Research will compare honey-sweetened black tea, green tea, and coffee to a placebo (warm water) to see if honey-sweetened black tea, green tea, and coffee work to reduce or increase blood pressure, heart rate, or blood glucose. Participants will: Take honey-sweetened black tea, green tea, and coffee, OR plain black tea, green tea, and coffee, OR warm water, one cup a day for 3 days The beverages will be taken at the Physiology laboratory, University of Uyo, and the participants will be observed for 60 minutes, during which their blood pressure, heart rate, and blood glucose level will be measured. This procedure will be repeated for the 3 days of study.

Conditions

• Blood Pressure
• Heart Rate
• Blood Glucose

Interventions

Type	Name	Description
OTHER	Warm water at 35 oC	The placebo for the control group
OTHER	Coffee	Instant coffee, Nescafé Gold Blend, manufactured by Nestlé Coffee Brand, Nestlé Global
OTHER	Honey-sweetened coffee	Instant coffee plus raw dark amber honey produced by Apis mellifera adansonii
OTHER	Green tea	Qualitea Natural Green Tea, packed by Qualitea Ceylon (PVT) LTD
OTHER	Honey-sweetened green tea	Green tea plus honey
OTHER	Black tea	Lipton Yellow Label Black Tea
OTHER	Honey-sweetened black tea	Black tea plus honey

Timeline

• Start date: 2023-10-17
• Primary completion: 2023-10-19
• Completion: 2023-10-19
• First posted: 2025-06-03
• Last updated: 2025-06-15

Locations

1 site across 1 country: Nigeria