Effect of Green Tea Amino Acid L-Theanine on Physiological Responses: A Protocol for Clinical Trial

L-theanine (L-THE) is a green tea-derived amino acid, consumed for its many benefits, including improved cardiovascular health, anxiolytic effects, antioxidant properties, and its effect on instigating a state of relaxed alertness. The aim of this clinical trial is to evaluate the effectiveness of the amino acid L-THE embedded in functional food whey protein mango sorbet, its related stress effects on physiological responses, state of alertness, and focus, and the accuracy of eye movements post-consumption.