Sniffing madeleines before a sugar drink: can a pleasant scent change your blood sugar response?

This study will test whether smelling a pleasant food odor (madeleine scent) before drinking a sugary solution changes how the body handles blood sugar. Twenty adults, some with obesity and mild insulin resistance and some without, will each undergo two sessions: one with the scent and one without. The goal is to see if the smell triggers an early insulin release and alters blood sugar levels, and whether this effect differs between the two groups.