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- Title
Whey protein rich in alpha-lactalbumin increases the ratio of plasma tryptophan to the sum of the other large neutral amino acids and improves cognitive performance in stress-vulnerable subjects.
- Authors
Markus, C Rob; Olivier, Berend; de Haan, Edward H F
- Abstract
Cognitive performance often declines under chronic stress exposure. The negative effect of chronic stress on performance may be mediated by reduced brain serotonin function. The uptake of the serotonin precursor tryptophan into the brain depends on nutrients that influence the availability of tryptophan by changing the ratio of plasma tryptophan to the sum of the other large neutral amino acids (Trp-LNAA ratio). In addition, a diet-induced increase in tryptophan may increase brain serotonergic activity levels and improve cognitive performance, particularly in high stress-vulnerable subjects.
- Publication
The American journal of clinical nutrition, 2002, Vol 75, Issue 6, p1051
- ISSN
0002-9165
- Publication type
Journal Article
- DOI
10.1093/ajcn/75.6.1051