Guayusa extract is a caffeinated tea leaf unique blend of antioxidants and caffeine. It is marketed as an ingredient that can help support energy and performance with potential health-related benefits. It has also been indicated as being as safe as any other existing teas (i.e., green tea). However, no studies have previous studied the dose-response effects of guayusa extract for supporting cognitive function, mood, metabolism, nor its effects on resting heart rate, blood pressure, and electrocardiogram characteristics.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Mood
Timeframe: 90-minutes Post-supplementation
Psychomotor Speed
Timeframe: 60-minutes Post-supplementation
Executive Function
Timeframe: 60-minutes Post-supplementation