Effect of Vitamin C and .BETA.-Carotene Administration on Physical and Psychological Respones to Stress Infiction, Especially in Relation to Banana Intake.

概要

論文の詳細を見る
We conducted an experiment on 14 healthy female students to observe influences of stress infliction upon subjective symptoms and urinary catecholamine excretion. We divided subjects into four groups;(1) basic diet, (2) basic diet with 150 g of banana, (3) basic diet, 150 g of banana and 30mg of β-carotene, (4) basic diet, 150 g of banana and 500mg of ascorbic acid. Experimental period was six days. Stresses were inflicted by six consecutive hours per day of calculation of mathematical problems on the 5th and 6th days. The result was as follows.<BR>1) Intake of banana caused increments of urinary dopamine and noradrenaline excretion with significant differences from the basic diet group.<BR>2) The amount of urinary adrenaline excretion was not influenced by banana intake while the amount was increased by stress infliction in every group.<BR>3) The number of stress induced subjective symptoms further increased in students with banana intake, but the increase was not observed when vitamin C or β-carotene was administered to the subjects prior to stress infliction.
特定非営利活動法人日本栄養改善学会の論文