Lindseth Glenda, Helland Brian, Caspers Julie
University of North Dakota, Grand Forks, ND.
Northland Community and Technical College, Bemidji, MN.
Arch Psychiatr Nurs. 2015 Apr;29(2):102-7. doi: 10.1016/j.apnu.2014.11.008. Epub 2014 Dec 9.
Using a randomized crossover study design, 25 healthy young adults were examined for differences in anxiety, depression, and mood after consuming a high tryptophan and a low tryptophan diet for 4days each. There was a 2week washout between the diets. A within-subjects analysis of the participants' mood indicated significantly (p<.01) more positive affect scores after consuming a high tryptophan diet as compared to a low tryptophan diet. Negative affect differences between the diets were not statistically significant (p>.05). Also, consuming more dietary tryptophan resulted in (p<.05) less depressive symptoms and decreased anxiety.
采用随机交叉研究设计，对25名健康的年轻成年人进行了研究，让他们分别食用高色氨酸饮食和低色氨酸饮食各4天，然后检测焦虑、抑郁和情绪方面的差异。两种饮食之间有2周的洗脱期。对参与者情绪的受试者内分析表明，与低色氨酸饮食相比，食用高色氨酸饮食后积极情绪得分显著更高（p<0.01）。两种饮食之间的消极情绪差异无统计学意义（p>0.05）。此外，摄入更多膳食色氨酸会导致抑郁症状减轻（p<0.05）和焦虑感降低。
