vious studies,18,19 our results suggest that intake of high fat and
carbohydrate foods preceding the sleeping period are associated
with higher sleep latency. Other studies19,20 have demonstrated
that individuals who ingested a high-glycemic index, carbohydrate-rich
meal 4 hours prior to sleep presented a decrease in
sleep latency. In addition to the amount of carbohydrates, the
glycemic index may have an important influence on sleep patterns,
especially in inducing sleepiness. Different types of fat
have also been shown to influence sleep. Grandner et al. found
that actigraphic nocturnal sleep duration was negatively associated
with total fat, monounsaturated fat, trans fat, saturated fat,
and polyunsaturated fat, and that higher intakes of fat were associated
with less sleep and subjective napping.32