during this time a significant correlation was observed between relative carbohydrate intake and global mood ( r = -0.74 ; p less than 0.01 ) and between the ratio of plasma tryptophan to other large neutral amino acids ( a predictor of tryptophan flow into brain ) and global mood ( r = -0.52 ; p less than 0.05 ) .
C0006104
brain
C0026516
mood