A randomised crossover trial of nitrate and breakfast on prefrontal cognitive and haemodynamic response functions.

ABSTRACT: It remains unknown whether dietary nitrate and breakfast may enhance working memory (WM) performance by augmenting physiological mechanisms and subjective psychological well-being. We performed a 3-arm randomised within-subject crossover study, with pretest-posttest comparisons, to test whether nitrate consumption via breakfast with a beetroot juice shot or regular breakfast compared to no breakfast improved WM (measured with n-back tests) and cognitive task-related changes in prefrontal cortical haemodynamic response (oxygenated- and deoxygenated-haemoglobin derived from functional near-infrared spectroscopy). In addition, effects on peripheral vascular function and self-reported psychological factors were assessed. In 60 adolescents (13-15 years old; 66% girls), WM improved in all condit

SUBMITTER: Heiland EG 

PROVIDER: S-EPMC11399140 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature