FIG. 1.

Variable rate glucose infusion and primed continuous infusion of insulin (2 mU · kg⁻¹ · min⁻¹). Hyperinsulinemic clamps were used to maintain euglycemic conditions for 90 min followed by a 90-min hypoglycemic phase. Cognitive tests were administered during steady-state euglycemia and hypoglycemia. The study drink (medium-chain triglycerides or placebo) was given at time = 75, 100, and 125 min. Upward arrows indicate time of drink administration.