Table 3.

Influence of tryptophan-enriched cereal consumption on Beck Depression Inventory and STAI anxiety test

	Control	Treatment	Posttreatment
Beck's test	28.88 ± 1.40	24.24 ± 0.85*	26.19 ± 1.62
State anxiety	30.13 ± 3.3	14.25 ± 2.8*	26.35 ± 5.4
Trait anxiety	34.07 ± 5.2	29.39 ± 5.8	29.39 ± 5.8

Volunteers filled out tests on the last day of every experimental week at 10.00 a.m. Results are expressed related to a Spanish typification. Each value represents the mean ± SEM. Control: first week (22.5 mg of tryptophan was ingested in breakfast and dinner); treatment: second week: (60 mg of tryptophan was ingested in breakfast and dinner); posttreatment week: habitual diet

*p < 0.05 control vs. treatment; Kruskal–Wallis test and Dunn's multiple comparison test (posttest) were performed; N = 35