Research with young adults has previously indicated flavonoid-rich berry interventions\nfacilitate improved executive function (EF) and positive affect 20 minâ??2 h post-dosing. There has been\nlittle consideration of the impact of a berry intervention over a working day and interventions have\nalso tended to consider only a single berry type. This study investigated the temporal profile of EF and\nmood changes over a 6 h period following a mixed-berry intervention. We hypothesized berry-related\nbenefits would be most evident when participants were cognitively compromised on demanding\nelements of the task or during periods of fatigue. The study employed a single-blind, randomized,\nplacebo controlled, between-subjects design. Forty participants aged 20â??30 years consumed a 400 mL\nsmoothie containing equal blueberry, strawberry, raspberry, and blackberryâ?¦â?¦â?¦â?¦â?¦.
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