The lack of significant effect of CHO ingestion on the
other cognitive tests in this study could be due to the
cognitive test battery being not demanding enough for
the participants. Studies have suggested that ingestion of
carbohydrate is more likely to improve cognitive function
of higher complexity [23-25]. Glucose ingestion was
found to enhance verbal episodic memory performance
in studies that employed a divided attention protocol
[26,27], but not in studies lacking in this protocol
[28-30]. The divided attention protocol involved participants
performing a secondary
task during encoding of a
supraspan memory list.