Glucose Tolerance, Meal Timing and MTNR1B

Glucose tolerance after a late diner (1 hour before habitual bedtime) differs from early dinner (4 hours before habitual bedtime) due to the concurrence of meal timing with different levels of endogenous melatonin. This effect can be different among risk allele carriers (G) or non-rick allele carriers (C) of the MTNR1B.