Fig. 2

The study protocol outlines the timing of the three testing points spanning 56 days. Day Zero marks the baseline measurement (T1) followed by a 28-day supplement intervention. Endline measures (T2) were conducted on the last day of supplement consumption, with a final follow-up testing session (T3) around day 56. The duration for recording food diaries is also marked. All measures were administered through online platforms and included a survey with validated questionnaires measuring trait anxiety, depression, and additional demographic variables. Additionally, two behavioral tasks were employed to measure emotion behavior and cognitive processing