Fig. 1.

t-STAI scores obtained in adult men immediately before and after a 3-month wheat fortification with lysine. A decrease in t-STAI score indicates reduction of long-term anxiety. (A) Summarized scores obtained from all male subjects participating in both the pre- and postfortification evaluation. Means + SEM of 20 and 22 subjects are shown. The bars with different letters differ significantly (two-way ANOVA followed by paired or unpaired t test as appropriate). Thereafter, the subjects were divided into two equally sized subgroups according to the prefortification t-STAI score (B and C). The results for the subgroup with high prefortification t-STAI are shown in B (means + SEM of 9 and 11 subjects), and the results obtained from the subgroup with low-to-medium t-STAI score are shown in C (means + SEM of 10 and 11 subjects).