Evening intake of α-lactalbumin increases plasma tryptophan availability and improves morning alertness and brain measures of attention

摘要: Background: Brain serotonin function is thought to promote sleep regulation and cognitive processes, whereas sleep abnormalities and subsequent behavioral decline are often attributed to deficient brain serotonin activity. Brain uptake of the serotonin precursor tryptophan is dependent on nutrients that influence the availability of tryptophan via a change in the ratio of plasma tryptophan to the sum of the other large neutral amino acids (Trp: LNAA). Objective: We tested whether evening consumption of α-lactalbumin protein …