method for enhancing the physiological action of caffeine, and composition for enhancing a physiological function

摘要

method for enhancing the physiological action of caffeine; and composition for enhancing a physiological function. The problem addressed by the present invention is to provide: a method for safely and effectively enhancing the physiological action of caffeine at low intakes when utilizing the physiological actions of caffeine resulting from central nervous system stimuli and increased mental activity; and a composition for improving physiological function having caffeine whose physiological action has been intensified as the active component. As a solution, the physiological action of caffeine is enhanced by combining caffeine with ornithine or a salt thereof. Also provided is a composition for enhancing physiological function having caffeine as active ingredient through the combination of caffeine and, as an agent for enhancing caffeine physiological activity, 0.1 to 100 parts by weight of ornithine or a salt thereof as the amount of free ornithine for each part by weight of caffeine. an improvement in physiological function through a mental fatigue-reducing action, a drowsiness-preventing action, or a concentration-sustaining action may be cited as the improvement in caffeine-resulting physiological function in the present invention.