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.

Inclusion Criteria:

Inclusion criteria are as follows:

• Age between 18 and 26
• Non-habitual coffee and tea drinkers who consume coffee, green tea, or black tea 2-5 times in the last two months
• Non-allergic to coffee, green tea, black tea, or honey
• Absence of medication use
• Will refrain from ingesting energy drinks, carbonated beverages, caffeinated beverages, or food for 24 hours before the study and throughout the study periods
• Will not consume anything except water after 11 p.m. during the experimental days Will be available and cooperate throughout the study duration.

Exclusion Criteria:

Exclusion criteria are as follows:

• Presence of cardiovascular disorders, hypertension, or diabetes
• Blood pressure above 120/80 mmHg and random blood glucose above 125 mg/dL
• Alcohol intake
• Smoking
• Habitual coffee or tea drinker